Expert door and window fitters in the South West

At Interseal, our goal is to be the South West’s first choice for window fittings and door installations. We offer a wide range of high-quality products, from conservatories and sliding doors, to roofline products and energy efficient windows. We focus on delivering the highest standards of customer service alongside long-lasting products to suit all needs and budgets. You can depend on the team at Interseal for comprehensive window fitting services.

Interseal provides no-obligation free consultations, giving you the opportunity to flesh out your ideas and bring your vision to life. Our expert team will take the time to walk you through your options so that you can make an informed and confident decision. We work with both domestic and commercial clients throughout the Plymouth region.

Highlights, Specialties & Features

  • Windows
  • Doors
  • Conservatories
  • Solidors
  • Fascias, Guttering and Rooflines

Professional Associations & Certifications


Serviced Areas

  • plymouth, devon

Payment Options

  • Credit Terms Available, Debit Cards, Financing Available, MasterCard, Personal Checks, VISA

Contact Details

  Person Lee
  City Plymouth
  Postcode PL7 4JH
  Address 8 Alders Court
  Phone Number 01752 340500

Products & Services



Apart from the obvious benefits of keeping out the elements, windows play a vital role in how a room feels and functions. Windows allow us access to natural light and air, stop noise, rain and pollution from entering the home as well as giving us security and privacy. For these reasons, it makes sense to consult a professional when choosing windows for your home. The experienced and knowledgeable team at Interseal in Plymouth can give you practical advice on what windows will best suit your needs and fit with your lifestyle and budget. From elegant bow and bay windows to efficient siding windows, we have a huge range to choose from.



Whether you’re looking to build a conservatory that incorporates a modular design or you desire a completely bespoke structure, our experienced conservatory consultants can provide comprehensive service. From design to installation, we’ll walk you through the available options and ensure that all project deadlines are met, giving you one less thing to worry about. Every Interseal installation in the Plymouth area is fully backed by our insurance, so you can be sure that you’re making a sound investment.



From low maintenance uPVC and composite doors to stylish French doors to let the sunshine in, Interseal can fit and install any door in your home. Our Plymouth can provide you with a free no obligation consultation and will take the time to listen to your needs and walk you through all available options. We’re approved stockists of leading door brands such as Solidor, so you can be sure that you’re getting the highest quality products at competitive prices. Even better, all of our doors come with a 10-year guarantee and there’s no deposit required!

  • I would recommend this business

Fantastic service, very professional and very clean and tidy. I would definitely recommend

Value for money
Service & support
Overall ratingExcellent

Customer Testimonials

Inter seal have just fitted my front door, they were fantastic. Really friendly and very professional service I would recommend them to anyone. Many thanks.

Really professional, friendly team. I would definitely recommend.

So pleased with my new windows Interseal fitted last week - they look great. Really impressed with the service provided by Interseal and being a Plymouth based business so easy to deal with.

Great local company, very professional

Fantastic Service.

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