David R
March 2019
The experience throughout was of the highest quality

This was the second job that we’ve had M&D do for us and, as with the last job, the experience throughout was of the highest quality: clear communication about the works (including specific clarification about how to resolve an issue with overly wet woodwork); polite, reliable and friendly employees; clean and tidy job; and of course, excellent results.

Angie L
April 2019
Before the CosyGlazing was installed we were using 4 bags of coal a week

We are too hot all the time!  Before the CosyGlazing was installed we were using 4 bags of coal a week. As soon as they had finished the installation of secondary glazing, draught proofing and loft insulation, out coal use dropped to 1.5-2 bags a week. It’s heaps better.  It also sound proofs the children’s bedrooms so they don’t get woken up by heavy footsteps in the street. It’s February but  the children say “it’s like summer in the house mummy.” They can go to the bathroom without getting wrapped up in towels first.

Mr S
We are thrilled with our new insulating windows

We have just returned from Italy and are thrilled with our new insulating windows. They are very discreet and smart and will clearly provide excellent insulation. The front door also is quite transformed and fits much more snugly into its frame.

Jill M
Professionalism and high standard of workmanship

I would like to commend the workers, who installed my internal glazing and refurbished my sash windows, for their professionalism and high standard of workmanship. They worked hard and were friendly and polite throughout their stay. All contact with the company was received in a friendly and professional manner. I would highly recommend this company to other potential customers.

C Lane
August 2019
What a pleasure it was having your team on site

Thank you for the excellent work done over the last couple of weeks and to let you know what a pleasure it was having your team on site. There’s always a slight dread sharing your house with complete strangers but the guys were brilliant. They tolerated our dogs, worked around us with minimum disruption and were always polite and friendly. So much so our kids insisted on baking cakes for them in the first week and bring home ice creams for them after our beach trip this week!

Of course the standard of work is vital and the work is top notch but having such nice people around makes the whole process so much more enjoyable.

R Peters
November 2019

We have a Grade II Listed 1740 Town House with Georgian facade with 9 front/side sash windows which rattled, leaked and once even let snow into our daughter’s bedroom. We had been looking for years for a suitable secondary glazing solution, which is sensitive to the Listing, easy on the eye and effective in terms of noise and heat loss reduction. Mitchell and Dickinson has been a superb choice! It uses a quality skilled team of surveyors, craftsmen and supported by best customer service. This is not a cheap option, however the payback period is good in terms of energy bills; and the quality of the work is superb. We have noticed immediately a huge difference in warmth in the house as well as a dampening of the external noise. We would recommend this company to anyone. The best customer experience we have had in years! Thank you.

New St
December 2019

Great job! We had M&D teams with us for four weeks over three visits. Partially because of a complex job and partially because of all the little, and not so little, surprises that turned up during the job. We have a listed property and whilst there is some debate whether an LBC is actually required, we applied for one with M&D assistance. No queries from the conservation officer and received approval v quickly.

We did look at a number of systems before settling on M&D. Definitely not the cheapest but the overall appearance is great. It wasn’t a quick decision for us, probably two years from first contact to completion. Helen was our main contact and she was ever helpful and ready to answer our various questions and queries. Equally important for a job of this type is the skill and experience of the fitting teams. The three teams of fitters that we met were all skilled, systematic, calm and thorough.

There is a definite quality approach to the work. They were all polite, clean and tidy. Our project included an amount of restoration and it turned out that there was rather more restoration required than we’d anticipated! Dealing with the surprises was where the fitters skill and experience really made the difference. The end result is a warmer home where the secondary glazing is hardly noticeable.

Helen V
June 2019
The end result is very impressive

Mitchell and Dickinson fitted secondary glazing to our listed grade 2 house with no window that was square or entirely straight. The end result is very impressive. The system fits perfectly and it is very unobtrusive. The  fitters were polite and helpful and did a great job clearing up after themselves each evening. The office staff were also excellent and professional. Our forever changing timeline for the building works we were having done prior to the secondary glazing was accommodated with no problems.

Bob M
June 2019
Completely unobtrusive & exceeded expectations.

Thanks Mitchell & Dickinson! This secondary glazing system is amazing – completely unobtrusive & exceeded expectations. More than that, the attendant renovation of the eight sash windows in our Grade 2 listed former vicarage has now made operation of them a pleasure! The team from M&D were highly skilled; they faced more problems with the renovation – wet rot – than expected but did a great job and were a pleasure to have in the house.

Debra H
Castle Cary, Somerset
I have been impressed by every aspect of the service - initial discussion, quotation, survey, installation

All the personnel I dealt with were courteous, patient and utterly professional. The product is barely visible in situ, which is exactly what I wanted, and I am already benefitting from a lack of draughts. I now feel much more confident about facing the winter here.

Damian M
Bath, Somerset
Highly recommended if you are in the market for secondary glazing.

The product itself is a conservationist’s dream – you would hardly notice it once installed. Very impressive in that sense and truly meets the standard of “minimalist intervention”. In fact, we sought and achieved listed building consent even though there is a strong argument that the product is “temporary” in nature. It was nice to get the Local Authority’s formal approval though.

Mitchell & Dickinson themselves are professional and courteous. Everything was well planned and programmed in advance and, as such, the job progressed accordingly. Their quotation was very transparent and well costed so there was no arguments over what was and was not done as the job progressed.

David R
Trustpilot 5 stars
Quality, courtesy and consideration

Mitchell & Dickinson have just completed some work at one of our tenancies. This was in a Grade II* listed building. We were very impressed by the quality of their work and the courtesy and consideration of their skilled craftsmen. We have recommend them to our architect as we start planning a development on our Grade 1 eleventh century building. The trustees and tenants were delighted with the care and skill shown.

Tom H
Trustpilot 5 stars

Mitchell & Dickinson recently assisted with installing secondary glazing, draught proofing and loft insulation at our Grade II listed home. I chose Mitchell & Dickinson on the basis that they had expertise with listed buildings and demonstrated an environmental and sustainability consideration with their products. I have been impressed with the work carried out and immediately have had to turn our heating down due to the improved heat retention. Brett and his team were polite and tidy and kept me updated with progress when required. I especially appreciate the debrief on how to service the secondary glazing going forward – this shows a degree of customer service which is easily overlooked. The team went out of their way to attend the property (which was outside their immediate vicinity) and all members of staff were consistently courteous and helpful. I strongly recommend Mitchell & Dickinson if you want top of the range products and would definitely use them again.

Fiona R
Trustpilot 5 stars

We have nothing but praise for the workmanship and courtesy of the Mitchell and Dickinson team. What is more, we are delighted with our secondary glazing on the large sash windows of our listed mill house in the New Forest National Park, and we cannot recommend the company highly enough. Worth every penny!

Nick B
Fantastic job, very happy

Mitchell and Dickinson provided a great service, making me feel like an individual and the end result is fantastic.

We live in a grade 2 listed property and had secondary glazing installed in a number of the original windows. Once we had decided to go with them they sent somebody to the property to do the final measurements. One thing that quickly became clear is they have a real passion for restoring period property’s and that you get a very individual approach/service. We discussed options for each window and discussed the pros and cons of each.

When the work was completed Keith and Robin were on site for a week and they were a pleasure to have around. Very polite, happy to answer any questions and very passionate about their job. We are really happy with the work that’s been completed. The quality of the work by Keith and Robin is excellent and final finished product is almost invisible, has made a noticeable reduction to noise and increase in warmth. We would certainly look to use them again in the future if the need arises and I won’t hesitate to recommend them, hence the review.

Bill T
We couldn't find anything good until we found CosyGlazing

We looked everywhere for a solution and couldn’t find anything that looked good until we found CosyGlazing, and some of the quotes we had were vastly expensive. But what you have done is better than I expected, with good soundproofing too – it’s amazing. I think it’s a fantastic job. Much better than I thought it was going to look, I must admit.

Susan H
March 2020

Super-efficient and very helpful

Very impressed with all the work done to clear out and insulate our loft, etc. with cosy, thermafleece sheep’s wool. Would highly recommend Mitchell & Dickinson.

March 2020

Highly recommended for window repair and secondary glazing

Mitchell and Dickinson repaired all our wooden windows and installed secondary glazing throughout the house. The experience was extremely positive from start to finish. Their staff are all exceptionally helpful from Tom in pre-sale, Helen in the office all the way through to the installation teams. Special mention to Kai who went out of his way to make something relatively invasive as easy as possible for me and my family. We also had a couple of unforeseeable issues post install which Mitchell and Dickinson resolved in a very timely and honourable manner. We would definitely use them again and would highly recommend them to anyone else looking for window repairs or secondary glazing.

Katrin W
March 2020

The house is a more comfortable place to live in

I live in an Edwardian 3 storey semi with the original sash windows. I love the windows and the original glass and have backed off getting them replaced. In more recent times I have become more concerned about my carbon footprint. Mitchell and Dickinson have come up with the solution and secondary glazed all the sash windows, front door and french doors. The house is so much warmer and the windows look great and work well. In fact, on first glance visitors do not notice the conversion to secondary glazing. The team were good to be around. They simply got on with it and worked around my presence. I am feeling the benefits of the insulation.


The work carried out by the team was superb and we are really pleased with the standard of fit and finish. Our aim will be to have the remaining windows completed around Easter time.