GT Travis Builders Ltd logo
Glazed bifold doors beneath rooflights in a stone rear extension

Window & Door Installation in Sheffield, Warmer Rooms, Better Security, Neat Finish

New windows and doors fitted by a builder, not just a fitter, so openings are sound, gaps are sealed and the inside is made good.

45 Years

Hands-on trade experience

6-Year

Guarantee on building work

£1m

Public liability insurance

Free

Site visit & written quote

Stage

Payments as work completes

Window & Door Installation

Why fitting matters as much as the product

New windows and doors improve warmth, cut draughts and make your home more secure. They're one of the most noticeable upgrades you can make, inside and out.

This service suits homeowners replacing old or failing units, anyone creating new openings for patio or bi-fold doors, and people completing an extension or refurbishment.

A high-performance window fitted badly performs like a cheap one. Gaps around the frame, damaged reveals and poor sealing let in draughts and water.

Because Garry is a builder, he can repair reveals, replace lintels, widen openings and make good inside, work that a fitting-only company often leaves for you to sort out.

Don't leave it to chance

The cost of old or badly fitted windows and doors

Draughts are only the start.

Heat loss and higher bills

Failed seals, misted units and draughty frames let warmth escape.

Condensation and mould

Cold glass and frames attract condensation, leading to mould on reveals and sills.

Security weaknesses

Old locks and worn hinges make doors and windows easier to force.

Water getting in

Poorly sealed frames let rain into walls, damaging plaster and decoration.

Common mistake: ignoring the opening

Fitting new frames into damaged openings or without checking lintels stores up problems.

Our process

How your window & door installation project runs

  1. 1

    Free home visit

    Garry measures, checks the openings and lintels, and talks through options.

  2. 2

    Specification

    Agree style, material and glazing for each opening.

  3. 3

    Detailed quotation

    A clear written quote, including any building work to openings.

  4. 4

    Removal and installation

    Remove old units, repair openings, fit, fix and seal new frames.

  5. 5

    Making good and guarantee

    Make good inside and out, with a 6-year guarantee on the building work.

What you get

The result, not just the work

Warmer home

Modern glazing and sealed frames reduce draughts and heat loss.

Improved security

Modern locking systems make your home harder to break into.

Openings fixed properly

Lintels, reveals and brickwork dealt with by a builder.

New openings possible

Widen for patio or bi-fold doors with the right structural support.

Tidy finish

Made good inside and out so there's nothing left for you to sort.

6-year guarantee

Backed by £1m public liability insurance.

In detail

Window and door options

Choosing the right product depends on your property and priorities.

uPVC windows

Low maintenance, cost-effective and thermally efficient. Available in white, woodgrain and coloured finishes.

Aluminium windows and doors

Slim frames and large glass areas suit contemporary homes and extensions. Modern aluminium includes thermal breaks to reduce heat loss.

Timber windows

Suit period properties and conservation areas, offering a traditional look with regular maintenance.

Patio, French and bi-fold doors

Opening up to the garden often means widening an opening. That needs a structural lintel or steel and careful brickwork, work we carry out as builders.

Front and back doors

Composite and uPVC doors offer good insulation and security with multi-point locking.

Building regulations

Replacement windows must meet thermal standards and, in some rooms, means-of-escape requirements. New openings and structural changes need building control approval.

Choosing colours and hardware

Frames are available in white, woodgrain finishes and a wide range of colours, often with a different colour inside and out. Handles, letterplates and hinges can be matched across the house for a consistent look. Considering the style of your home and neighbouring properties helps new windows and doors look like they belong.

Lintels and openings

Every window and door sits under a lintel that carries the wall above. Old lintels can corrode or crack, causing stepped cracks above openings. Replacing windows is the ideal time to check and, if necessary, replace them, work a fitting-only company may not carry out.

Internal reveals and sills

Removing old frames can damage plaster around the opening. Reveals are made good and new internal sills or window boards fitted so the inside looks as finished as the outside.

Replacing a single unit or the whole house

Whether you need one failing back door replaced or every window in the house, the same care goes into each opening: measuring accurately, checking the structure, fixing securely and sealing properly.

Glazing options

Double glazing is the modern standard, with low-emissivity glass and gas-filled units improving thermal performance. Triple glazing offers further insulation and noise reduction, useful on busy roads. Obscured glass is used in bathrooms and front doors for privacy.

Opening styles

Casement windows are the most common, hinged at the side or top. Tilt-and-turn windows open inwards and are easy to clean from inside. Sash windows suit period properties and are available in modern materials that look traditional.

Security features

Multi-point locks, shoot bolts, laminated glass and internally beaded units make windows and doors harder to force. Ask about security features when choosing products, especially for ground-floor and rear openings.

Sealing and weatherproofing

Frames are fixed securely into the opening, gaps filled with insulation, and the outside sealed against the weather. Cills are fitted to throw rain clear of the wall. These details are what stop draughts and leaks.

Period and conservation properties

In conservation areas or on older homes in places like Ecclesall and Dore, the style of windows may matter for planning. Choosing appropriate designs keeps the character of the property.

Combining with other work

Replacing windows and doors during a refurbishment or extension means reveals, plaster and decoration only need doing once, which saves time and money.

Working with Garry on your window & door installation

When you contact GT Travis Builders about window & door installation, you speak to Garry Travis, the builder who will run the job. He has 45 years of hands-on experience in the trade, and he'll visit your home free of charge to look at the work in person rather than quoting from a phone call.

After the visit you get a detailed written quotation. Pricing is bespoke to your property, with no set packages, so you're only paying for what your home actually needs. Payments are made in stages as the work progresses, which means your money follows completed work.

If drawings or structural calculations are needed, Garry works with trusted architects and structural engineers. If you already have plans, he builds to them. Where building regulations apply, he coordinates with building control officers throughout and manages the job through to final sign-off.

Before any work starts, Garry explains the order the job will run in, what will happen on each stage, and what you'll need to do, such as clearing rooms or choosing finishes, so there are no surprises once work begins. If anything unexpected is found once the job is underway, he explains it and the options before any extra work goes ahead.

All building work carries a 6-year guarantee, and GT Travis Builders Ltd holds £1,000,000 public liability insurance. We're based in Basegreen, Sheffield, and carry out window & door installation across Sheffield, Chesterfield, Rotherham, Mosborough, Ecclesall, Dore, Dronfield, Staveley, Wickersley.

Before you hire anyone for window & door installation

  • Get a written, itemised quote. A proper quote for window & door installation lists what's included, preparation, materials, making good and removal of waste, so there are no surprise extras later.

  • Ask who will be doing the work. Know who is responsible on site and who you call if something isn't right. With GT Travis Builders, that's Garry.

  • Check the guarantee and insurance. Ask how long the work is guaranteed for and whether the builder holds public liability insurance. Ours: 6 years, and £1m cover.

  • Agree how payments work. Avoid paying large sums up front. Stage payments linked to completed work protect you throughout the job.

  • Confirm who handles approvals. If building regulations or planning apply, agree who deals with them and who obtains the completion certificate.

Questions

Window & Door Installation: frequently asked questions

Free site visit · Free quote

Get warmer, more secure rooms, fitted and finished properly.

Garry will visit, look at the job properly and give you a detailed written quote, no obligation. Every job comes with a 6-year guarantee and £1m public liability insurance.

Finished grey balcony with timber glazed doors and black metal railings

Free site visit · Free quote

Tell Garry about your project. Get a clear, fixed-scope quote.

45 years in the trade, a 6-year guarantee and £1m public liability insurance on every job.

Call NowFree Quote