Endorsed by Which?

Conserv-a-tech

4.8

101 Reviews

Opening Hours
Today - –
  • Monday –
  • Tuesday –
  • Wednesday –
  • Thursday –
  • Friday –
  • Saturday - Closed
  • Sunday - Closed

What is a Which? Trusted Traders Hertfordshire Trading Standards Approved Endorsement?

Which? Trusted Traders has partnered with Hertfordshire Trading Standards to create a Hertfordshire Trading Standards Approved endorsement. In addition to our standard trading standards assessment, this trader has had a DBS check and is subject to a Trading Standards intelligence check

About

Owned & managed by its Director Eric Knappett, with the Sales & Design managed by Allan Wilding, both Eric & Allan have over 60 years of combined experience & a wealth of knowledge in this industry. Conserv-A-Tech is your market leader in glazed extensions, conservatories, orangeries, energy-rated windows, garage conversions, bi-folding doors in Stevenage. being Independently owned & a flourishing business,with an enviable reputation, Conserv-A-Tech offer's the highest quality products of the industry, much better project management, installation, and customer service,& all our staff are Employed.
Our customers are real people...not just a contract number!
As the leading choice for conservatories, Glazed Extensions, Windows & Doors based in Stevenage, we install throughout Hertfordshire, Bedfordshire, Cambridgeshire, Buckinghamshire.
Call Eric, Kim or Allan today, and start your journey with Conservatech.

What we do

  • Builders

    • Conservatories
    • Garage conversions
  • Double glazing

    • Double glazing installation
  • Doors

    • Bi-fold doors
    • Patio doors
  • More Services

    • orangeries
    • solid tiled roof glazed extensions
    • bi-fold door

Customer reviews

Why you can trust these reviews

All reviews are verified as being genuine and a true customer of this trader.

How can we be so sure?

100% of the reviews we publish have been through our stringent moderation process.

4.8
101 reviews
Customer Service
4.8
Quality
4.9
Value
4.8
Sort by
Superb service
Customer Service
Quality
Value
Prompt & reliable service from the first measuring to the final fit. Highly recommended.
Ian, Hertfordshire Posted on 19/07/2018 , work completed 19/07/2018
Ultra 380 Warm Roof
Customer Service
Quality
Value
Conserv-a-Tech staff were very professional throughout. The team was effecient, thorough, courteous and helpful and a pleasure to have at our home. We are delighted with the finish of the new roof.
Customer in Hertfordshire Posted on 17/10/2019 , work completed 12/10/2019
New Ultraframe Conservatory Roof
Customer Service
Quality
Value
Our existing Ultraframe conservatory roof needed to be replaced. We did our research and chose Conserva-A-Tech over several other companies to do the work. That research paid off. Conserv-A-Tech stood out from most the other companies as a company that really knew about conservatories. Most of the other companies we contacted for quotations seemed to be in the conservatory business as a sideline to their core market of double glazed windows. With Conserv-A-Tech you got the impression that if something did go wrong they could fix it. Thankfully nothing did. Being a large roof to replace it was reassuring to have a professional conservatory company doing the work. The work they did was first class, from start to finish. We were very impressed with all aspects of the work, taking off and disposing of the old roof and installing the new one. We now have a brand new professionally designed Ultraframe roof to be proud of, all done to the agreed schedule and budget. Thank you Conserv-A-Tech.
Customer in Hertfordshire Posted on 07/11/2020 , work completed 26/10/2020
Replacement conservatory
Customer Service
Quality
Value
Despite a delay starting on site due to supply chain issues, the build progressed efficiently and has been completed to a high standard. Everyone involved was punctual, polite and tidy. There was good communication with the office throughout. I am really happy with my new conservatory and would definitely recommend Conservatech.
Customer in Hertfordshire Posted on 11/03/2022 , work completed 10/03/2022
Great new porch
Customer Service
Quality
Value
The job was to remove an old pvc and glass porch and replace with new. The work was completed on time despite wet and windy weather.
Customer in Hertfordshire Posted on 16/01/2023 , work completed 12/01/2023
Outstanding Team and Top Quality Work
Customer Service
Quality
Value
Having wanted to have an extension on our house we consulted the team at Conserv-a-tech. Eric had come up with a bespoke plan that had ticked all the boxes of what we required. Jack, Leon, Ayron and the rest of the build team were simply outstanding. Every evening all tools were cleared up, all working areas were cleared and their pace of work was insane. The standards of the work completed beat our expectations. Eric had gone above and beyond in terms of helping us out and I would definitely recommend Conserv-a-tech for anyone wanting to improve their living space.
Customer in Central Bedfordshire Posted on 03/12/2024 , work completed 30/04/2023
Excellent Work From A Great Company
Customer Service
Quality
Value
I needed a replacement for my old rotting wooden conservatory, a family member had their conservatory replaced by "Conserv-A-Tech" and recommended them to me for such an excellent job they had done. From initial visit to completion, the whole experience was very smooth and easy. Allen and Eric offered excellent advice on the design of the replacement conservatory, and the excellent fitters Leon and Ellis did a fantastic job of construction, with professionalism and attention to detail. Every night, the site was left spotless and tidy, all in all a fantastic experience from a great company, all completed on time and within budget. I am now looking forward to using my great new conservatory more and more. Many thanks for such an excellent job.
Customer in Hertfordshire Posted on 08/07/2025 , work completed 03/07/2025
Replacement of Conservatory
Customer Service
Quality
Value
Everything about our experience with this company was positive. The quote was thorough and competitive. The work was undertaken in the expected timescale and to an excellent standard. The whole team were very professional and a pleasure to have in our home. We are delighted with our new conservatory, it is just as promised.
Customer in Hertfordshire Posted on 14/01/2026 , work completed 05/11/2025
My Review
Customer Service
Quality
Value
A first class service with first class fitters. Really pleased with the job.
Sandra, Hertfordshire Posted on 08/06/2015 , work completed 08/06/2015
Fantastic company
Customer Service
Quality
Value
From the outset Eric & Tony were so helpful. The installation team Mark & Leon were polite, courteous & respectful of my property, they did an amazing job & cleaned up every day. Brilliant in every way would highly recommend.
Doris, Hertfordshire Posted on 01/03/2015 , work completed 01/03/2015
Everything we hoped for
Customer Service
Quality
Value
We wanted to extend our kitchen and create a light, spacious kitchen/diner. As this part of the house faces south west we wanted to ensure it didn't get too hot on sunny days. Eric explained all the options to us and we opted for an orangery with thermally efficient, tinted roof glass. We also chose windows and bif-old doors which incorporated Venetian blinds. We were very impressed with the Conserv-a-tech team. Their workmanship was always of a very high standard and they were nice people to deal with. We are delighted with our new room and would definitely recommend them.
Happy Customer Posted on 09/04/2017 , work completed 09/04/2017
New conservatory/extension
Customer Service
Quality
Value
I would highly recommend Conserv-a-tech. From the initial quote through to the finished conservatory the process was smooth, professional and seemless. All the workmen were professional, tidy, polite and excellent at their jobs paying attention to detail. Any possible additional costs were communicated with us throughout so there were no nasty surprises. We love our new conservatory and have had lots of compliments on it. We would have no hesitation in using Conserv-a-tech again and recommending them to friends and family.
Customer in Essex Posted on 09/03/2019 , work completed 27/09/2018
Excellent service
Customer Service
Quality
Value
We can wholeheartedly recommend Conserv-a-tec. Workmen were friendly, accommodating and efficient. They left the work very cleanly. Once started everything was done on time when they said it would be. We are delighted with our new conservatory roof.
Customer in Hertfordshire Posted on 08/11/2020 , work completed 06/11/2020
Replace existing roof to join conservatory to house
Customer Service
Quality
Value
Contacted Conserv-a-tec to replace existing conservatory roof and join the conservatory to the house. Martin gave us a few ideas to play with and came up with a detailed drawing which we agreed best suited our needs. No pressure or false promises which made a refreshing change. All the tradesmen were polite, clean and tidy and very good at what they did. The final sign off and we are over the moon, has transformed a tired old cold conservatory into a room we cannot keep out of. Many thanks to the whole team.
Customer in Hertfordshire Posted on 22/12/2021 , work completed 20/12/2021
Conservatory roof replacement
Customer Service
Quality
Value
We had our glass conservatory roof replaced with a livinroof which now means we can use the room all year round. The service was exceptional from quote to the finished installation. All workmen were polite and tidy using quality materials. The after service and communication has been very good and we would not hesitate to recommend this company.
Brendan in Luton Posted on 20/04/2021 , work completed 22/12/2020
Fantastic conservatory
Customer Service
Quality
Value
I now am the proud owner of a fantastic conservatory. Every single worker that came to put my conservatory up were polite and cleaned up after their works. They kept me updated as to who was coming next and what they would be doing. The works were tweaked because I had footing from my old conservatory which no one knew were there but Eric came out to check they would be suitable and that changed the works to be completed so it brought my works forward which pleased me as it meant the works were completed before I went on holiday. I had one sticky opener and they were out within a day just to adjust it which is not uncommon with new windows I know from experience.
Tracy in Central Bedfordshire Posted on 21/06/2022 , work completed 01/06/2022
Excellent team delivering brilliant product
Customer Service
Quality
Value
Job: Remove leaking old plastic conservatory, and replace with ix250 roof with lantern roof light and bifold doors for room measuring 4.5mx3.4m. From the outset, these guys were hardworking, professional and friendly. Allan worked with me initially to work up a design for the replacement conservatory, and among his excellent suggestions, was an orangery-style lantern roof light, which is the highlight of the finished build. Allan was always a delight to work with. The main teams working on the build included Leon, Ayrron, Craig, Steve, Ellis and Jack, as well as the electrician Phil, and plasterer Charlie; all very polite and respectful towards my neighbours, very hardworking and frankly really nice people to have on site. They work to very high standards. There's no cutting of corners. They clean up the site at the end of each day. They go out of their way to deliver the best results. I had high expectations of the final product, and it has surpassed those expectations. Should I ever require an extension in any future property I live in, I would not hesitate to go with Conservatech.
Customer in Central Bedfordshire Posted on 15/01/2024 , work completed 11/01/2024
French windows
Customer Service
Quality
Value
From their first visit to the completion of the job they were professional, efficient, polite and tidy. I cannot recommend them highly enough.
Customer in Central Bedfordshire Posted on 09/05/2024 , work completed 03/05/2024
brilliant service
Customer Service
Quality
Value
After a few years putting off the rebuild of our old, wooden conservatory we are delighted with the finished result. We wanted something that would not look out of place with our character property and garden and this blends in really well. it also has all the positives of a modern extension. From the beginning with Allan talking us through the plans, colours etc to Eric and his team, especially Leon and Arryon, with the actual construction, they were all very professional, polite, clean and tidy. Would 100% recommend
Customer in Hertfordshire Posted on 01/04/2024 , work completed 22/03/2024
Excellent work
Customer Service
Quality
Value
I contacted Conservatech to fit me a new garage back door as I was very impressed with the work they did when they replaced my old conservatory a few years ago. A Very friendly and a high standard of work from all who were involved in the job. Thank you.
Customer in Hertfordshire Posted on 10/07/2024 , work completed 05/07/2024
Brilliant job
Customer Service
Quality
Value
Excellent in every aspect. Good attention to detail. Very courteous, prompt, left no rubbish. Fantastic customer service, genuinely wants to please. Will highly recommend. Neighbours are already asking!
Jason, Hertfordshire Posted on 14/10/2014 , work completed 14/10/2014
Fantastic job
Customer Service
Quality
Value
Fantastic service from start to finish. Great job.
J, Hertfordshire Posted on 16/07/2015 , work completed 16/07/2015
Excellent job
Customer Service
Quality
Value
Work done on time and of high quality. Given this was a replacement conservatory, site kept clean and tidy and furniture well protected
Lewis, Hertfordshire Posted on 04/12/2015 , work completed 04/12/2015
Excellent service
Customer Service
Quality
Value
Having been let down by reputable businesses in the past I was very hesitant, but my mind was put at ease by the splendid salesman. Efficient surveyor and confident installers. Nothing but praise for this company. Thank you.
Linda, Essex Posted on 02/08/2016 , work completed 02/08/2016
Brilliant work
Customer Service
Quality
Value
Great company, lovely hardworking team & my conservatory is so beautiful.
Vanessa, Hertfordshire Posted on 08/11/2016 , work completed 08/11/2016