Windows, Doors and Conservatories in Sussex

What our Customers say

Over 600 reviews available to view on Checkatrade.com, with a 9.98 out of 10 star rating.

"The work was carried out very well, the staff were friendly and professional. Couldn't have asked for more"

New side door, and flashing over gable end - February 2024

"Impressed with the quality of the product and the fitting. Job was carried out on the exact date estimated when we ordered. Old double glazing was replaced which suffered considerable condensation in cold weather. This problem has completely cleared up after the new units were fitted. We are delighted"

Provision of double glazed French Door and Triple Glazed Window - January 2024

"Excellent service from start to finish. Delighted with my new door. Great communication. Fitters turned up on time, were professional, polite and cleaned up well afterwards. Highly recommended"

New back door - January 2023

"We chose Insulation Services due to Stephen’s straightforward and professional approach to quotes and an understanding of what we wanted to achieve. Stephen and Mark made several visits and meeting Mark (who heads the building team) confirmed that we were in safe hands. Professional throughout, great standard of work and snagging dealt with immediately and unquestioningly. Mark and his team were a pleasure to have around and were assisted for a while by the other Mark who was also great. Darryl and his team were excellent on doors and windows. Recommend unreservedly"

New windows and doors, an en-suite in the main bedroom, a new garage roof, refurbishment, extension - May 2022

"I cannot recommend this firm highly enough. We have used them of two occasions and each time their work has been excellent. Both their surveyor and installer were professional and extremely pleasant to deal with"

Replacement windows and doors - March 2022

"We are delighted with our new front door! The work was carried out quickly and efficiently on the day. Very precise and neat work and altogether excellent. We knew in choosing Insulations Services we were in safe hands, as we had previously had our back door and upstairs windows installed by them. The help given at the time of deciding which door to choose was friendly and very helpful when visiting their showroom, without any pressure at all. In fact my contact with the whole team at Insulation Services was always friendly and efficient and we would highly recommend their services"

New front door - October 2021

"As expected, superb service once again. Excellent timekeeping and standard of work. Having used them twice now - and once by a family member based on our recommendation - I have no hesitation in recommending Insulation Services. Indeed, our neighbour has also commissioned them based on the quality of work carried out for us. You've tried the rest - now try the best"

Replace soffits and guttering on detached double garage - August 2021

"We are very pleased with our new door and windows, they look so smart. The 2 fitters were very professional. I was amazed that they finished the job in just one day leaving everything clean and tidy. Top quality - I have no hesitation in recommending them.

Replacement door and two windows - May 2021

"I was very impressed with the professional service I received. Everyone I dealt with were polite and courteous and the guy that fitted the window panels was lovely. They turned up at the time they said, very clean and tidy and competitively priced. I will use them again and will definitely recommend them"

Replace blown window panels - April 2021

"Delighted with the new conservatory and especially with the warm roof, recommended by Stephen. The workmanship is second to none, and consideration, and tidiness too. The original footings were found to be unstable,& had to be replaced at extra cost, but I was kept informed at every stage"

Replace conservatory, new front door, garage door, guttering - December 2020

"Prompt, courteous and efficient. No ‘hard sell’ like so many glazing companies. Suggested and Improved on the look and lowered the threshold as the previous doors had unsightly ‘filling’ beneath to change the level causing a higher threshold. I contacted them after reading recommendations on Nextdoor and subsequently a friend and a client both said they’d had windows fitted by the Company and were very satisfied with their work"

Replacement patio doors - October 2020

"We would highly recommend Insulation services. Right from initial contact the company was polite and provide great customer service. We were kept informed throughout from date of initial quotation through to fitting. Pricing, quality and customer service was excellent"

Glass fitted in windows - July 2020

"Great service on this occasion as well as in Feb 2020 when they company fitted new front door. Excellent + tidy jobs on both occasions - thank you!"

Install 1 pair replacement hinges to kitchen window. Also free bathroom window, to open - June 2020

"The guttering had been leaking for many years. I had tried to apply a sealant but with no success. I assumed I would have to have the guttering replaced. In view of the age and construction of the conservatory this was not realistic. I was advised how the leak could be cured and offered a quote for the work to be done. We have now had quite a lot of rain to give the repair a good test and, so far, all is well"

Sealing leaks in conservatory guttering - April 2020

"We would not use any other company. They are always very professional"

Double glazing front door windows and door panel - February 2020

" Very efficient and attentive to detail".

Mr and Mrs W - Crowborough - September 2019

“Excellent service. Friendly and helpful. Really pleased with our porch. Highly recommend”.

Mrs D – Crowborough – July 2019

“Professional from start to finish, friendly staff, expert installers. Superb value for money”.

Mrs R – Crowborough – June 2019

“A most professional company all staff are friendly, helpful and knowledgeable. Love the windows replacements. Great quality and workmanship”.

Two bedroom windows replaced, Ms J – Crowborough – January 2019

“Excellent service from start to finish. Great product. 100% satisfied”.

Mr & Mrs S – Crowborough – December 2018

“Friendly, polite, efficient, flexible workforce providing high quality products and service.”

Mr S – Uckfield – October 2018

“Professional workmanship. Excellent product. Courteous, professional tradesmen.”

Mrs S – Heathfield – March 2018

“I have used this company several times now and each time they have done a great job. Great to deal with from start to finish and excellent quality of work.”

Mrs M – Tunbridge Wells – January 2018

“Excellent in all respects!”

Mr G – Rotherfield – April 2017

“Excellent service from start to finish.”

Mr H – Tonbridge – February 2016

“I would recommend this company.”

Mr S – Crowborough – July 2014

"Very good from start to finish, place was left tidy. Very friendly service, will be re-using them again in the near future"

Secondary glazing fitter - February 2013

"From the first enquiry through to completion, thoroughly satisfied with service and quality"

Replaced lead light windows and frames to 3 windows - September 2012

"They were very helpful, in fact meticulous in helping us choose the new items and the installation is excellent"