FIS Windows are double glazing specialists based in Ipswich. Established in 2006 we have grown from a small family business to become one of the most successful installation companies in Suffolk.
We specialise in uPVC, aluminium and composite windows, doors and conservatories. Our business has been built on our reputation for providing high quality glazing products backed up by first class customer service.
So if you’re considering new windows, doors or perhaps a new conservatory and would like some honest, expert advice, please get in touch.
New double glazed windows can transform the look and feel of your home and improve energy efficiency.
Available in a variety of styles and finishes, we can recommend replacement windows to suit you and your home.
FIS offers a range of beautifully designed, professionally crafted double and triple glazed doors.
Our UPVC & composite doors come complete with A-Rated energy efficient glass and high performance security features.
We’ve been installing conservatories and replacement conservatory roofs in Ipswich & across Suffolk for many years.
A classic conservatory or stylish orangery will transform your home, creating extra space for your family.
Our Ipswich showroom on Holywells Road is open to visitors Monday to Friday from 8.30 am until 4.30 pm.
In a few simple steps you can design your entrance door to suit your taste, style and home.
Click the button below to start designing and get your FREE no-obligation quote.
Additional Services
A new roof will transform your conservatory into a welcoming space that you can enjoy all year round.
Looking to give your home a bit of a facelift? Consider adding our hard-wearing, fire resistant exterior cladding.
Avoid damp and structural problems by checking and replacing fascias, soffits and guttering before damage occurs.
Looking to add some extra space to your home? We offer full extension build services, taking care of everything from start to finish.
Service Centre
Need double glazing repairs or maintenance? We can help!
Get in touch with our Service Centre team and let them know what you need.
Mr. Smith12/03/2025Trustindex verifies that the original source of the review is Google. Another brilliant job from FIS Windows. Superb old bungalow transformation... Caroline B21/02/2025Trustindex verifies that the original source of the review is Google. We were fortunate to come across FIS whilst they were working on another property in Felixstowe. They were truly professional from start to finish. We have several windows refitted and a new patio door set fitted. Pas was incredibly helpful. The quote was reasonable and transparent. The fitting was seamless, professional and completed to a very high standard. A year on, we are still delighted with the result G18/09/2024Trustindex verifies that the original source of the review is Google. This should be a 10-star rating, the professionalism of FIS, the customer service, the outstanding quality of work carried out by Andy and Eron, absolutely fantastic. Thank you so much! Gaetano Jill Grosvenor06/03/2024Trustindex verifies that the original source of the review is Google. I was delighted with the service from FIS in advising then providing and fitting a replacement stable door even though several other companies had said it couldn't be done. Victoria Mason01/03/2024Trustindex verifies that the original source of the review is Google. Just had 14 windows replaced with FIS. I couldn’t recommend anymore. Very happy, the finishes are immaculate. The fitters were tidy, was like they hadn’t been here. Marina Ericson24/02/2024Trustindex verifies that the original source of the review is Google. Would highly recommend FIS windows. Very pleased with overall product - we had secondary double glazing fitted. The fitters were friendly and very experienced. Communication with FIS throughout was good too. Great value. Simon Lea19/02/2024Trustindex verifies that the original source of the review is Google. FIS installed new soffits, fascia's, downpipes and new front door with surrounding windows in a porch at a new property we moved into. Excellent work, quality product and really fantastic people who completed the installation - good knowledge and excellent finish. Highly recommend. EJB12/02/2024Trustindex verifies that the original source of the review is Google. Thank you to all the team at FIS Windows Ltd for their recent installation of windows and doors. My front windows and door were replaced in September and the back windows and door in January and from my initial phone call to the work being completed on both occasions everyone including the office staff, surveyor, the teams behind the scene and the fitters who carried out the installation, were so efficient, helpful, polite and courteous. A credit to the company. I would highly recommend FIS Windows Ltd if you are thinking of replacing your windows and doors. Rach Bullard09/02/2024Trustindex verifies that the original source of the review is Google. I would highly recommend FIS Windows Ltd. Their customer service was excellent from the point of walking into their showroom to enquire, to having my new front door fitted. Max was very communicative and helpful and my new front door looks lovely with no more drafts. The price was fair and they booked me in quickly. 10/10! Nicki Blanch08/02/2024Trustindex verifies that the original source of the review is Google. We always prefer dealing with Small Local Busineses. It was the right Decision. The owner of FIS came around to see what we needed. He priced our two new doors up within 5 days. The Men who installed the Two doors were absolutely Fantastic. They have done a really lovely job and they cleared up behind themselves. They worked all day to get the job done! I will definitely use FIS again!
Customer feedback...
As a family run business we take great pride in the service that we offer to our clients.
Unlike some double glazing companies, our sales staff don’t work on commission. There’s no pressurised selling here. Just honest people dedicated to delivering the best service at value for money prices.
We will give you a quote and answer any of your questions, then give you time to decide if and how you would like to proceed.
Enter your contact details below and we'll call you back (during office hours).