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R J Insulation

4.9

62 Reviews

Opening Hours
Today - 09:30–19:00
  • Monday 09:30–19:00
  • Tuesday 09:30–19:00
  • Wednesday 09:30–19:00
  • Thursday 09:30–19:00
  • Friday 09:30–19:00
  • Saturday - Closed
  • Sunday - Closed

About

RJ Insulation specialise in ECO friendly, natural and sustainable loft insulation.

Pre 1920 homes.
One of our assessors holds a Level 3 award in giving advice on energy efficiency measures to listed and traditional buildings.

He recommends using the Sheepswool. Sheepswool is hygroscopic, therefore is specified for listed and traditional buildings.

1920 -1960s homes.
For 1920 - 1960s homes we use SuperFOIL Insulation. SuperFOIL is designed to keep you cool in the summer and warm in the winter. SuperFOIL states that it can increase the value of your home.

Post 1970.
For 1970s or later we offer the SupaSoft Insulation. Supasoft is made entirely out of single use recycled plastic bottles. on average it takes 10,000 - 15,000 Single use recylced plastic bottles out of landfill and into your loft. It never degrades and is approximately 11% more thermally efficient than the typical Fibreglass.

We give out a lifetime guarantee for SuperFOIL, Sheepswool and Supasoft

What we do

  • Insulation installers

  • Loft and property converters

    • Loft Insulation
  • Loft Ladders

  • Garden Rooms

  • Conservatories

  • More Services

    • loft boarding
    • loft improvements
    • loft rooms
    • garden office

Customer reviews

Why you can trust these reviews

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

4.9
62 reviews
Customer Service
5.0
Quality
5.0
Value
4.8
Sort by
Professional and efficient
Customer Service
Quality
Value
Contacted RJ Insulation through the website. Alfie got back to me and walked me through all the options with no pressure to buy (gave me some time to think it over and called back the next day). Decided to arrange a survey for the following week. John carried out the survey. He was on time, very thorough and respectful of my property. Got a callback from Alfie moments after John left and was pleased to hear the price had gone down based on the survey, so decided to go ahead with the installation. Installation was a breeze despite a complex loft space - this was made possible by a great team of installers lead by Ramon. They arrived on time (on both days) and quickly got to work. They kept me informed as to what they were doing at all times (e.g. when installing downlighting covers, shower mixers, etc...) and brought me up to show me their progress after cleaning the space and installing the new layers of insulation. Everyone involved was absolutely brilliant. Can't recommend RJ Insulation highly enough!
Customer in West Northamptonshire Posted on 11/03/2025 , work completed 11/03/2025
Would highly recommend
Customer Service
Quality
Value
Myself and the wife had been looking to get our loft converted. On speaking to a few firms we decided to go with R J insulation. We got a call from Alfie who took time in telling us about what was available . We decided to go with the second option after a day of thinking it over. The guys who arrived came at the stated time all were very polite and called me sir ( i had to tell them to call me raymond) the work that these guys done was excellent. Max explained everything to us and took time to do so . The guys were here from 08:00 until 19:00 . We are well pleased with the work done and have been telling people we know about the company. I have always said you get what you paid for and we certainly got that. Work was finished to a very high standard . We don’t have a small lift and it must have been challenging. Max and his guys did a great job . The guys hoovered on the last day and left the place tidy . We can’t thank the guys enough and we will be using our loft for storage area now .
Customer in Falkirk Posted on 05/03/2025 , work completed 01/03/2025
Restored my faith in professional workers
Customer Service
Quality
Value
Following my husband’s cancer treatment, we downsized to make our lives easier. This started three-months of hell after discovering a rat infestation in the loft. After eliminating the blighters, we booked a clearance with an expensive pest control company who recommended a simultaneous re-insulation. Wary of re-insulating with the same fibrous material, we researched alternatives deciding on SuperFoil with RJ Insulation. Alfie was friendly & knowledgeable with information about materials and cost. A surveyor arrived on time and assessed the job. We booked the installation two days after the clearance. RJ Installation arrived promptly and found old insulation left in hard-to-reach areas. They immediately removed the mess, including. three redundant water tanks. Thank goodness we refused the recommendation from the other company who would have re-insulated on top of the mess and not told us! The RJ Insulation crew were, without any doubt – the most efficient, friendly and cheerful crew we have EVER had working in our homes, instilling us with confidence and informing us of every action and inviting regular inspection. The SuperFoil has noticeably improved the temperature in our home. We were surprised to see the frost outside our super toasty house. I don’t hand out money or praise where it is not deserved and RJ Insulation deserve every bit of praise, and every penny paid. They were simply marvellous, and I have no hesitation in recommending them.
Customer in York Posted on 10/02/2025 , work completed 07/02/2025
Professional attitude from all, clean and respectful of the house.
Customer Service
Quality
Value
Very clearly explained the materials which would be used on the initial phone call. Told me the price and that it wouldn’t be any higher. Surveyor came round to measure and assess - friendly and efficient (covered his boots to come in) Was given a date for the works - arrived promptly and were friendly, covered the floors with dust sheets, checked the ceilings with me for any existing cracks/issues. They removed all the old insulation and unsuitable previous wood boards which were mostly damaged and took all away. Installed new supersoft insulation, boarded the area and fitted a new insulated hatch. At the end of the job invited me to have a look at the work - all seemed very good, then they vacuumed and left no trace that they had ever been here (except for the new hatch!)
Customer in Oxfordshire Posted on 14/01/2025 , work completed 13/01/2025
Cosywool loft insulation - excellent
Customer Service
Quality
Value
Our house is complicated as it has a normal loft space but also around three sides of the roof there are eaves which lie directly over the rooms on the ground floor. All these areas were poorly insulated but putting new insulation in was a real problem, especially in the eaves with boards running the full length which required effective insulation inserting underneath these boards. We searched hard over many years to find an insulation fitting company who we felt really understood the challenge - until we found RJ. They were helpful in discussing the issues and answering our questions. The only problem was that the initial quote, done remotely, was an overestimate due to the complexity of our loft so we were pleased that we had done some of our own measurements! The fitting team were amazing! They worked extremely hard and came up with very sensible solutions to one or two unexpected issues. The sheep's wool insulation had an immediate beneficial effect. Definitely not the cheapest firm but certainly one that understands the challenges of a "different" house! Thank you RJ.
Customer in South Yorkshire Posted on 26/11/2024 , work completed 18/01/2024
Don't hestitate to use RJ Insulation
Customer Service
Quality
Value
A lovely business to deal with from beginning to end. They are highly experienced and know what they're doing. They offer well-informed guidance and long-term guarantees that are reassuring when making such an investment.
Customer in Bath and North East Somerset Posted on 26/11/2024 , work completed 22/11/2024
Internal Wall Insulation
Customer Service
Quality
Value
I was recommended to this company by the manufacturers of the Wool insulation that I wanted to use. My initial enquiry was swiftly dealt with and a surveyor contacted me and visited swiftly as well. A date was organised for the installation which had to be postponed twice - firstly because the suppliers of the insulation failed to deliver on time and secondly due to an overrun on a previous job. Luckily I was available for new dates on both postponements. The team of two men who carried out the work were swift, efficient, pleasant and were quick to consult if there were any issues. They left the rooms clean though, inevitably dust built up all round the house. In the aftermath of the insulation there has been a cold snap and I have definitely noticed a significant increase of temperature throughout the rooms now insulated. I would recommend the company
Customer in Westmorland and Furness Posted on 23/11/2024 , work completed 06/11/2024
Loft Insulation
Customer Service
Quality
Value
So happy with the work this company carried out in my property. The men where professional, polite and left my property spotless. Can highly recommend this company. Thank you RJ Insulation
Customer in Essex Posted on 12/08/2024 , work completed 31/07/2024
Fantastic find!
Customer Service
Quality
Value
I'm so grateful that I found this superb company! They explained things patiently and clearly and most certainly did not do a sales pitch! They offered me a cheaper option but I opted for SupaSoft. They have been excellent at all stages and did the work in a day which kept the impact on my tenant to zero. They moved my tenants thing back afterwards and tied up. I can't really recommend them highly enough and will certainly use them again.
Customer in Greater London Posted on 08/08/2024 , work completed 01/08/2024
Sheepswool loft insulation
Customer Service
Quality
Value
From the start of my original enquiry to the end of the installation itself, nothing was too much trouble. Alfie was helpful, explained everything and went out of his way to sort any concerns. The quote was done efficiently and installation time after was almost immediate (week later). The installation team were clean, tidy and efficient as well as understanding. They arrived at 7.45am having left head office at 5am and left 11am. Again, nothing was too much trouble and the work was carried out as detailed on the quote. I will not hesitate to recommend.
Customer in Lincolnshire Posted on 28/06/2024 , work completed 28/06/2024