Thermally Efficient Sealed Units

We understand the importance of reliable components in ensuring the success of your projects, and our sealed units are designed to meet the highest industry standards. We offer a wide range of sealed unit sizes and styles to accommodate your specific project requirements. All sealed units are sourced from a leading glass supplier in Lincoln, and are crafted to deliver exceptional thermal efficiency and durability.

Partner with Boston Trade Frames to access high-quality sealed units for your projects. Contact us today to discuss your specific needs and obtain a quote.

Contact Us
Worker installing plastic window indoors

Key Features

Customisable sizes

We can source sealed glass units in variety of different sizes and styles to suit your needs.

High-performance coatings

Choose from a range of options including glass coatings to boost thermal efficiency and durability.

Competitive pricing

At Boston Trade Frames, we always strive to offer our trade customers fair prices and excellent service.

Rich industry knowledge

Our team has a huge amount of industry experience, so we can offer expert advice for any project.

Leading supplier

We source our sealed units from a leading glass supplier in Lincoln, so we can guarantee quality.

Energy efficient units

Our sealed units promise excellent thermal efficiency, combining insulating double glazing and robust construction.

Our Order Process

Request a free quote

Let us know what you’re looking for and whether you need a trade supply or if you’re a homeowner needing installation.

Speak to our experts within 24 hours

Our team will aim to get back to you within 24 hours.

Delivered within 2-4 weeks

If you’re an installer, we can deliver your products within 2-4 weeks. If you’re a homeowner, we can aim to supply and fit within 6 weeks.

Frequently Asked Questions

View our FAQs or contact us for more info!

01205 311144

Can you supply sealed units in different sizes?

Yes, we offer sealed units in a wide range of sizes to accommodate various window and door configurations. Get in touch to discuss your specific requirements!

What kind of glass do you use in your sealed units?

Our sealed units are sourced from trusted suppliers we have partnered with for years; the glass used is high-quality glass that meets industry standards for clarity, strength, and energy efficiency. To discuss specific requirements, please get in touch!

How can I get a free quote?

Simply contact us through our website or give us a call. We'd be happy to discuss your project and provide you with a free, no-obligation quote.

What other windows are available for trade customers?

As well as sealed units, we can also supply a wide range of uPVC and aluminium windows, including casement, tilt & turn, French, sliding sash and flush sash.

Where do you source your sealed units from?

Our sealed units are sourced from Allenby Glass, one of the leading glass suppliers in Lincoln. A variety of different sizes, styles and glazing options are available to suit the needs of virtually any project.

Sealed unit in factory
close up shot of sealed double glazed glass units on a trolley

Made to Your Measurements

We understand that every project is unique.

That's why we offer a comprehensive range of customisation options for our sealed units. From precise dimensions and shapes to a variety of films, coatings, and glass finishes (including coloured and decorative glass options), we can create sealed units that perfectly match your requirements.

Whether you need standard or bespoke designs, our team is dedicated to delivering exceptional products tailored to your needs.

What our customers say

Don't just take our word for it. Read what our satisfied customers have to say about Boston Trade Frames.

Leave a review
Quotation Marks

Quality products at a good price

Dean Brotherton

Google Icon

Had Nigel do our double glazing on the front. Great price and great job.

Richard Phillips

Google Icon

Good quality products at a good price helpful and quality customer service would definitely recommend

Kevin Cook

Google Icon







    By submitting your details you confirm that you agree to the storing and processing of your personal data by Boston Trade Frames as described in the privacy statement.

    The Brains

    Meet the Owner: Nigel

    Nigel Apps, owner and director of Boston Trade Frames, has dedicated his career to windows. He began in joinery, then transitioned to manufacturing high-quality uPVC windows.
    Nigel's unparalleled knowledge and expertise ensures that you get exceptional windows, doors and conservatories for every project.

    Learn more
    business owner nigel in the boston trade frames factory
    kommerling logo supalite logo bsw logo solidor logo doorco logo warwick development logo sheerline logo

    Expertly Crafted Home Improvements in the Heart of Boston

    At our Boston factory, our close-knit team utilises cutting-edge machinery and years of experience to craft high-performance windows and doors. We manufacture systems from industry leaders such as Kömmerling and Solidor.

    Learn more
    business owner nigel and his daughter constructing a upvc window profile
    Family-run
    Quality products
    Rich Industry Knowledge
    Fair Pricing
    Established 1981