Endorsed by Which?

Ecostream Limited

4.8

27 Reviews

Opening Hours
Today - 24 hours
  • Monday - 24 hours
  • Tuesday - 24 hours
  • Wednesday - 24 hours
  • Thursday - 24 hours
  • Friday - 24 hours
  • Saturday - 24 hours
  • Sunday - 24 hours

About

We understand that each client has unique requirements and objectives when it comes to sustainability. That’s why we take a personalised approach to our services, ensuring that we address the specific challenges and opportunities that each client faces.
IMPROVE air quality.
PREVENT condensation, mould and damp.
PROTECT against Covid 19 and allergies.
The Prana Recuperator/ decentralised MVHR is a quick-to-assemble, smartphone-controlled ( Bluetooth, wi-fi) ventilation system that can solve all of your problems, such as mould, condensation or lack of fresh air! It utilises an innovative system of CO2, humidity, air quality VOC, temperatures sensors to monitor, correct and control the air quality, CO2, humidity and temperature in any indoor environment with G2 filter. It’s similar to autopilot. With a two-year warranty and ten-years lifespan, the Prana Recuperator/ dMVHR has your future covered.
Please visit the business website www.ecostream.org.uk to see more information about the work we can do for you.

What we do

  • Ventilation installers

    • Ventilation systems
  • Indoor air quality

  • Condensation

  • Damp proofing and timber preservation services

    • Condensation and humidification control
  • Environmental services

    • Air quality
  • More Services

    • supply ventilation systems

Customer reviews

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4.8
27 reviews
Customer Service
4.9
Quality
4.8
Value
4.7
Sort by
Great heat exchanger installation
Customer Service
Quality
Value
Had ecostream fit two PRANA MVHR in my bedrooms and I was seriously impressed with the quality and efficacy of the unit. It is extremely quiet and also improved the air quality notably. No condensation or stale air in either room now. Very happy
Customer in Greater London Posted on 06/04/2025 , work completed 01/04/2025
PRANA Unit Installation
Customer Service
Quality
Value
We had three PRANA units installed by Ecostream Ltd in December 2024. Our main concern was poor air quality and high levels of humidity in a Victorian property. From the very outset Vyacheslav and his team were quick to respond to our queries, courteous, prompt, and efficient. There was no mess left after installation and everything was left clean and tidy. We have noticed a huge improvement in air quality and humidity as a result of the installation of the units. I couldn’t recommend Ecostream Ltd enough for their quality of service and reasonable and clear pricing.
Customer in Greater London Posted on 06/04/2025 , work completed 16/12/2024
Solves problem condensation
Customer Service
Quality
Value
Ecosteam installed 6 units in my 1930's house 18 months ago primarily to deal with condensation in bedrooms and damp in a very busy laundry room. The company was easy to deal with, the product was explained well and the installation was done on a timely basis. The Prana units have done exactly what I hoped they would. I no longer have any condensation on our aluminium windows and the unit works well at removing moisture caused by drying clothes. I would highly recommend Ecostream for their professionalism and the Prana units for solving problem condensation and improving air quality as an excellent retrofit ventilation option.
Customer in Greater London Posted on 22/03/2025 , work completed 30/09/2023
Excellent experience
Customer Service
Quality
Value
We decided to have 4 prana units installed, primarily to improve ventilation for health reasons. We found Slav to be friendly, informative and efficient. On installation day, all went smoothly, with the team working incredibly hard to get the job done. It is 2 months since we had the work done and we have been delighted. The indoor air quality is so much better, and the health benefits have been evident. Condensation on our single glazed windows is a thing of the past. We are so glad we went with Ecostream.
Customer in Greater London Posted on 19/03/2025 , work completed 22/01/2025
Excellent product and service
Customer Service
Quality
Value
Great product, excellent customer service! We live in a Victorian property and as part of the renovation work we had two prana units installed, one in the new kitchen extension and one in the bathroom. We had condensation and mould issues in our old kitchen and bathroom. The building work included insulation so we were keen to ensure we didn't seal it up to avoid trapping moisture. We have no condensation and the air quality is great! We love that there's no cold draft. Slav went above and beyond explaining the operation of the units and also going out of his way to visit us and ensure installation was just right. Would 100% recommend the company and their products.
Customer in Posted on 15/03/2025 , work completed 10/03/2025
Great work
Customer Service
Quality
Value
Excellent service. Slav was incredibly patient and responded to any queries we had prior to the units being fitted. Very clean and tidy work carried out. We’ve had our units for a month and are pleased so far :) Would definitely recommend
Customer in Greater London Posted on 08/03/2025 , work completed 30/10/2024
A truly professional service
Customer Service
Quality
Value
A truly professional service from initial survey to final installation of three decentralised MVHR Prano 160 ERP PRO mini ventilation units in a 2 bedroom flat which had problems over many years with condensation and mould. Slav and his colleague demonstrated an efficient and highly flexible approach throughout the entire process. Slav was very customer focused and explained in good clear detail the benefits of the system, its simplicity of operation and the very good design concepts used in the construction of the products. I had researched widely other similar systems but concluded that the Prano units were technically superior and better designed. I was particularly concerned about possible noise and display light levels during the night but found that the night setting was excellent for providing a trickle flow with no audible sound and the display can be either turned off or set to a minimum light level. Other features relating to the simplicity of operation allow you to set and forget the units to continuously operate without daily intervention. Within a few weeks following installation there was a noticeable improvement and after two months operation there is a very significant improvement in the air quality and no signs of condensation or mould throughout the flat. I highly recommend the Prano units and the Ecostream business culture for their excellent customer focus and service provision.
Customer in Greater London Posted on 07/03/2025 , work completed 18/11/2024
Excellent service and a great product
Customer Service
Quality
Value
Vyacheslav and his colleague came to install 2 Prana units in my house last March. It’s a new build eco house and very well insulated so requires ventilation to control air quality. From first contacting Ecostream we found Vyacheslav very helpful and knowledgeable, all our questions were answered quickly and courteously. The installation was smooth and considerate of our non- standard build, and we were able to trust that the work was done to a high standard consistent with the building materials used. We have a prana in the bathroom as the only ventilation unit, and one in the kitchen together with a cooker extractor. They work really well keeping the air quality good, taking humidity out whilst maintaining warmth. They also eliminate smells in the house and keep the air fresh. We are considering having more units fitted in other rooms. If we have any questions, Vyacheslav is always happy to reply to messages and advise us. We are really happy with Ecostream and recommend them.
Customer in Essex Posted on 24/02/2025 , work completed 30/03/2024
Overpriced, Ineffective, and Poor Customer Support
Customer Service
Quality
Value
I purchased the EcoStream system for £1,300+ to fix a recurring damp issue in my HMO kitchen (six occupants). Sluv, the seller/manager, inspected my property and assured me his system would solve the issue. Initially, it seemed to work, but when cold weather arrived, my walls became wet, and lumps formed. Sluv advised me to adjust settings to Auto, then Auto Plus, but the issue persisted. When he visited, I showed him that my £150 floor dehumidifier instantly dried the walls, while his system failed. Instead of addressing the failure, he blamed the cold weather, my extractor fan, and the number of people in the kitchen—factors he knew from the start. I tested both units on video: when I switched off EcoStream and used the floor dehumidifier, the walls dried up; when I turned it back on, they became wet again. After I sent him the proof, he blocked me. Verdict: Do Not Buy This system is a waste of money. A £150 dehumidifier works better than this £1,300+ unit, and the seller offers excuses instead of support. Avoid EcoStream at all costs!
Business Customer in Greater London Posted on 10/02/2025 , work completed 09/07/2024
The trader replied (on 13/02/2025)
Thank you for your feedback; we value customer insights as they help us improve our services. We would like to address your concerns regarding the Prana system. Upon installing the decentralised MVHR Prana 210G ERP PRO mini on July 12, 2024, our team tailored it to your property’s specifications. We have documentation showing your walls exhibited damp and mould prior to installation. We appreciate your initial satisfaction with the system, reflected in your positive review on November 20, 2024, and your inquiry about additional units in January 2025, suggesting the system met your needs. On January 4, 2025, you requested a quote for two additional units for two bedrooms, indicating your satisfaction after six months, including the cold December weather. Regarding the condensation issues reported on January 6, our team found no signs of damp during our visit. We recognise that the kitchen environment can increase moisture, particularly with six occupants using several cooking appliances, as evidenced by the video you shared showing multiple pans with boiling meals. This activity can raise humidity levels, creating conditions similar to a "Turkish sauna," which can challenge any ventilation system without a reliable kitchen hood. We offered to have independent specialists assess the system and kitchen environment, but we respect your decision to decline. We remain dedicated to ensuring our systems work effectively for all customers. If you have further concerns or wish to discuss this matter in detail, we are here to assist. Thank you for your understanding.
Could not be happier
Customer Service
Quality
Value
We had six Prana 160 ERP PRO mini units installed in our house as part of a complete house renovation. We could not be happier with the outcome. They perform really well. There is not a drop of moisture on any windows, even when drying laundry inside. Interestingly we have found there is no need for the dehumidifier we used to use when drying clothes and clothes dry incredibly quickly even in the current cold weather with no heating on! The night setting is great - I hate background noise and I really do not notice any noise and when the display is turned down there is no light coming from it so the unit really does not disturb your sleep which was one of my concerns before installation. These units were much more economical to install as they did not require the huge amount of building work that a centralised MVHR system requires, and I am anticipating much easier and cheaper to maintain. I was glad we chose this system when I saw the mess and disruption friends installing a centralised system have just endured. Ecostream were very easy to deal with - communication was easy, they answered my MANY questions, were flexible in the dates for the diamond core drilling and then installation to fit around our project and other trades, and Slav made sure he scheduled time with us to show us how to use and clean them when they were installed. Overall, I am a very happy customer.
Customer in Greater London Posted on 22/01/2025 , work completed 19/12/2024
Installation of two PRANA units
Customer Service
Quality
Value
Slav and his team were extremely professional. Work was carried out on time and to a high standard. Ensuring any mess created was cleaned up prior to leaving. Aftercare has been excellent since installation. Slav has contacted me several times to ensure the units are operating as expected, and has been on hand to provide advice on any questions around how to maximise the use of the units.
Customer in Surrey Posted on 21/11/2024 , work completed 10/10/2024
Great work, polite, attentive approach
Customer Service
Quality
Value
Slav is very professional and attentive to details. He treated the installation as if he was installing it in his own home, so he was taking things I wouldn’t even think of into consideration. Installation was neat, systems performing perfectly, changing the quality of air and reducing the humidity in my apartment. Highly recommended Slav and his team as well as the product itself for humid UK houses. Thank you!
Customer in Greater London Posted on 12/11/2024 , work completed 25/09/2024
Amazing work!
Customer Service
Quality
Value
Slav and his team travelled all the way from Surrey to Sheffield to install 4 Prana units in one day. They did an excellent job getting all four units installed in a single day, working until the job was completed and even cleaning up after themselves! The Prana units have definitely improved the air quality in the house - the living room no longer smells fusty. I'm still waiting to see whether they have a significant impact on the humidity in the house. The house is an old Victorian terrace so it might take a while before the humidity levels reduce. In terms of communication and customer service, Slav was excellent at sending through information about the Pranas and the installation process. He shared many pictures and videos of his installations with me which really helped with deciding on going ahead with the install. An excellent company to work with!
Customer in South Yorkshire Posted on 18/10/2024 , work completed 28/09/2024
Top quality work
Customer Service
Quality
Value
I had three prana ventilators installed in my house. We were having problems with condensation and mould especially in one of the bedrooms. Now all the condensation and mould are gone after just few days. The quality of the air inside is amazing. The work was done to the highest standard possible(drilling into the walls was professional). The functioning of the ventilators was explained clearly.
Customer in Greater London Posted on 08/10/2024 , work completed 03/10/2024
Highly effective
Customer Service
Quality
Value
Really happy with our Prana 160 pro mini. We had one unit installed in our finished basement after dealing with some damp issues. The installation just took a couple hours after a site visit was conducted. The unit looks good and has made a big difference to the air quality in our basement. It’s gotten rid of the musty basement smell, and our spare bedroom downstairs no longer has a damp feel to it. The automatic function is perfect at controlling the levels of humidity, and the night mode has been great when we’ve had guests stay, as it stays on the quiet side. Would highly recommend.
Customer in Greater London Posted on 11/08/2024 , work completed 08/07/2024
Great unit sorted out damp issues and promptly installed
Customer Service
Quality
Value
The tenant in my flat was complaining about excessive condensation and mould in the flat. I’d heard of this technology and found Ecostream were able to supply units suitable for individual rooms/flats rather than whole house systems. The came when appointed and installed the unit with their massive drill. All done and installed within the time allocated and now the tenant is happy and there’s no mould or condensation l
Customer in Dorset Posted on 10/07/2024 , work completed 15/04/2023
Highly recomended
Customer Service
Quality
Value
I have two prana recuperator units installed last year, and today Mr Slav came to do cleanup/maintenance. After one year of use, I can highly recommend to use these recuperators, because they are very efficient small and most of all do the job which they’re supposed to do. As for Mr Slav, he is really attentive to customer needs, and does his best to install these recuperators to the highest standard.
Customer in Greater London Posted on 25/06/2024 , work completed 25/06/2024
Very professional
Customer Service
Quality
Value
The experience from initial meeting to completion is best described as 'smooth'. The company understand their product and are thorough and professional in all of their undertakings. After sales service is particularly strong and a credit to Ecostream. The system itself is excellent and has made a significant difference to the air quality in the house.
Customer in Greater London Posted on 16/05/2024 , work completed 21/12/2023
Excellent results from the installation of the decentralised MVHR units
Customer Service
Quality
Value
We have been very impressed with the ventilation units which were installed in four rooms in the back of our house. We are built close to a damp cliff in the mountains and for years have suffered damp air and mould particularly when the house is left empty for more than a day or two. The air quality has improved significantly and when we recently went away for 2 weeks we did not return to the normal damp and mould even though the weather in the UK had been very wet. Our house has very thick slime walls do installation was tricky and we were very impressed with how hard the guys worked to get the units installed. Would definitely recommend.
Customer in Gwynedd Posted on 15/05/2024 , work completed 23/11/2023
Just the job in a house with no ventilation.
Customer Service
Quality
Value
Although we didn’t have problems with mould our Co2 monitors kept going off due the house being too well sealed causing lack of air flow. The Prana recuperator ventilation system installed by Ecostream has solved the problem. We have 5 units in total and everyone in the house is feeling healthier.
Customer in Buckinghamshire Posted on 15/05/2024 , work completed 10/01/2024
Spectacular customer and technical service during MVHR Recuperator units installation
Customer Service
Quality
Value
Slav and his colleague provided flawless attention and care to our Prana system installation. It was 8 Ecostream decentralised MVHR Prana 160ERP PRO units, on all four floors of a large Victorian house on the Isle of Man, a long way(and some water between) from Ecostream's UK Surrey base. They were extended customised length 565-585mm units and the project was a challenge, almost on a different planet, including plane ✈️ cancellation of return flight after Slav's 'feasibility study' flight to the Isle of Man. Ferry difficulties during the installers' travels to the island were overcome also, and still Ecostream delivered the product installation and commissioning ontime. Extremely hardworking staff, technically capable and a great product, which is pricey but definitely worth the expense.
Customer in Posted on 02/05/2024 , work completed 17/11/2023
Great work!!!
Customer Service
Quality
Value
A very professional service has been provided to us. First visit they came to do a quote then we book a one day installation. They arrived on time did the job perfectly and leave the house clean like nothing happened. We have now 3 prana units. Our house is not cold and humid as it was before and the mould didn't come back on our walls. I couldn't recommend another company it really worth the price. Me and my husband are very happy. Bathroom, living room and bedroom are now free from mould!
Customer in Greater London Posted on 29/04/2024 , work completed 11/03/2024
Wonderful Job
Customer Service
Quality
Value
The flat, I'm living in has quite a lot of mould. Which is a nightmare for me, as I have a chest condition. I researched all different types of units to clean the air & stop mould. The Prana unit's are small, they take up virtually no space at all. I've just had 3 installed, about 2 wks ago. They're brilliant, I've had no condensation since they've been installed.
Customer in Hertfordshire Posted on 03/03/2024 , work completed 22/02/2024
Excellent service and products
Customer Service
Quality
Value
I have used this company to install 3 devices to deal with damp in my London flat. I am now going for a fourth device dealing with the bathroom. The improvement in air quality and reduction of damp in a leaky Victorian ground floor flat has been remarkable. I found them courteous and efficient and recommend them highly if you have a problem of this sort.
Customer in Greater London Posted on 17/01/2024 , work completed 03/04/2023
Endorsement Reference
Customer Service
Quality
Value
Ecostream installed 2 Prana recuperator / dMVHR units. The work was done quickly, efficiently and everywhere was cleaned throughly after completion.
Which? Trusted Traders Consumer Posted on 21/12/2023 , work completed 22/09/2023
The trader replied (on 08/01/2024)
Thank you))
Endorsement Reference
Customer Service
Quality
Value
I had 3 Prana ventilation systems installed in my basement flat. I have been really happy with the process of the installation from my first contact to completion. Communication was easy, and I felt they made a real effort to meet with me, view the property, and organise a date that was suitable for me. I live in Bristol and at no point did I feel like an inconvenience to them as they had to travel 3 hours for the job. During the day they worked endlessly, everything went smoothly and they kept me updated with the progress. They were respectful of my property, and made sure I was comfortable with how to use and maintain the vents. It has been an excellent experience, and I would highly recommend them.
Which? Trusted Traders Consumer Posted on 21/12/2023 , work completed 03/11/2023
The trader replied (on 08/01/2024)
Thank you))
Endorsement Reference
Customer Service
Quality
Value
Ecostream Ltd installed 2x Prana Pro Heat recuperators to help reduce the spread of black mould. the company were very supportive and willing to help and provide details to reassure me that this investment was the right way to go for me.
Which? Trusted Traders Consumer Posted on 21/12/2023 , work completed 04/11/2023
The trader replied (on 08/01/2024)
Thank you))