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Principle Contracting

Window and Door Installations for Your Property

We expertly install, replace, and fit windows and doors, supporting facilities managers, landlords, and contractors across the Midlands. 

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Skilled Local Craftsmanship

Flexible Scheduling That Fits You

Reliable and Fully Insured

Why quality windows and doors matter

Poor fittings cost more than you think

Draughts, security issues, and rising energy bills - outdated or poorly fitted windows and doors can cause major problems for any property.

Security and weather risks

Worn or damaged frames can leave your property vulnerable to break-ins and weather damage.

Poor energy performance

Inefficient insulation leads to energy loss, higher bills, and uncomfortable indoor temperatures.

Fitting frustrations

Bad installations cause sticking doors, draughty windows, and ongoing maintenance headaches.

Unreliable contractors

Delays, no-shows, or unclear pricing can disrupt your schedule and damage trust.
Your dependable local partner

Expert window and door fitting, done right

We specialise in professional window and door installation, replacement, and fitting, offering honest advice, tidy workmanship, and a no-fuss, friendly approach.

Tailored to your needs

Made to fit your project

Working with property managers, landlords, and site teams, we install the right products with minimal disruption.
Rooted in the community

Trusted by local professionals

We’ve served the Midlands for years, earning trust with clear quotes, neat jobs, and reliable timelines.
Here when you need us

Responsive and reliable service

From initial survey to final fitting, we’re here to make your job easier, no chasing or surprises.

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What Our Customers Have to Say

Testimonials

See how others stay compliant, warm and worry-free with our support. Here’s what clients say about our work and results.

"New boiler fitted to high standard. Very impressive and neat new pipe work. Very tidy and clean with minimal disruption. Initial survey by Richard Syrett was very enlightening and helpful. Followed…"
mark grundy
"Honestly im really shocked to see all the negative reviews on here. Our experience was fantastic, pleasant and polite gas engineers for a full boiler install. Left no mess did I really tidy job and…"
joanna price
"Just had 7 radiators replaced, together with various pipework alterations, and the team did an excellent job. Many thanks."
David Pye
"I've been using UK GAS Professionally and personally for a few years. They've replaced my boiler at home and are always prompt with any issues in the properties I manage often rectifying them on the…"
Joshua Findlay
"Absolutely fabulous team thankyou"
Tanya Lowe
"Today we had a new boiler and 2 radiator fitted . Also a new shower unit .Very pleased with the service. Very friendly and lovely lads , who explained everything for us and left the house very…"
Debbie Bennett
"Sulets has used UK Gas for almost two years for Gas Safety Certificates, servicing and repairs. During this time, they have carried out over 200 jobs for us. We have always found them to be…"
Emma Fox
"A big thankyou to all the work involved in helping us get upto date with our heating we are very happy with it all so again"
Rich. Rutland
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How It Works

Your 3-Step Plan.

Getting started is simple. These three steps make the path clear, so you know exactly what happens next, and stay in control of scope, timeline and cost.

Step 1)

Book a Consultation

You tell us what you need and the outcome you want.

Step 2)

Review Your Plan & Quote

You get a clear scope, timeline and cost with no surprises.

Step 3)

Approve & Get It Done

You choose the start date and stay updated from start to sign-off.

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Your Questions Answered

Frequently Asked Questions

Have questions about our window and door services? Here are some common ones we get asked:
Do you offer both supply and installation?

Yes, we can supply and install a wide selection of windows and doors, or fit products you’ve already sourced. Just let us know what you need.

Can you work around other contractors on-site?
Absolutely. We regularly coordinate with site managers and other trades to stay on schedule and keep disruption to a minimum.
What types of properties do you work on?

We work on both residential and commercial properties, from single lets to large-scale developments. We’re happy to discuss your specific site.

How do I get a quote?
Simply get in touch to arrange a free consultation. We’ll visit your site, discuss your needs, and provide a clear, no-obligation quote.
Are your installers qualified and insured?

Yes, all our installers are experienced professionals, and we’re fully insured for your peace of mind.

Let’s talk about your windows and doors

Book a consultation today for expert advice, a fair quote, and a service you can rely on.
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