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Replacement sash windows fitted throughout a brick and weatherboard house with a colonnaded entrance in Sussex

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Windows, doors & home improvements in Sussex, Surrey & Kent

Family-run double glazing installers in East Grinstead — energy-efficient windows, doors, conservatories and complete home improvements, trusted across the South East since 2007.

Get a free quote01342 410079

Get your free quote

Tell us what you need and we’ll call you back to arrange a free, no-obligation survey — usually the same working day.

  1. 1What you need
  2. 2Your project
  3. 3Your details
What can we help with?
Tell us about your project

Where shall we send your quote?

We’ll email you confirmation of your enquiry straight away.

No pushy sales visits. We’ll only use your details to answer your enquiry.

10/10 on Checkatrade

From 149 verified customer reviews

Certass registered

Fully insured and SafeContractor approved

10 year guarantee

On every product we supply and install

Family run since 2007

Our own fitters — never subcontracted out

Georgian-style detached home with new white windows, and a Holtye Windows board on the lawn

Welcome to Holtye Windows

Your local specialists for a warmer, brighter, safer home

Holtye Windows Ltd was established in 2007 by Thomas Attrell and has grown into one of the best-known home improvement companies in the East Grinstead area. What started with double glazing now covers windows, external and internal doors, soffits and fascias, warm roof insulation and conservatories, alongside full renovations, refurbishments and commercial building works.

Everything we fit is manufactured from modern, energy-efficient, lead-free profiles with high-security locking as standard, in a wide choice of colours and finishes suited to contemporary, rural and traditional properties alike. You’ll get expert advice, an honest opinion on what your home actually needs, and a free written quotation.

Get a free quoteSee recent projects

Accredited & approved

What we do

Everything from a single window to a whole renovation

Choose the part of your home you’d like to improve. Whatever you start with, you deal with the same local team from first survey to final sign-off.

Replacement white uPVC casement windows fitted to a brick and weatherboard house in Sussex

Windows

Energy-efficient uPVC, aluminium and timber windows in casement, flush casement, sash and tilt & turn frames — with leaded, Georgian and cottage detailing to match your home.

Explore windows
Bright blue composite front door with chrome furniture fitted to a period brick cottage

Doors

Composite, uPVC, aluminium and timber doors for the front, back and inside your home. Choose from 14 door designs and over 100 glass options.

Explore doors
White Victorian conservatory with a glass roof on a detached brick home, beside a new patio

Conservatories & Living Spaces

Conservatories, orangeries, verandas and sun rooms built to last and virtually maintenance free — traditional through to fully bespoke.

Explore living spaces
White conservatory with a dark tiled warm roof and two rooflights

Warm Roofs

Swap a tired conservatory roof for an insulated, tiled warm roof. JHAI-approved, Building Regulation compliant and comfortable all year round.

Explore warm roofs
Newly installed shaker kitchen with an island, oak worktops and exposed brick wall

Kitchens

Full kitchen installations from first design to the final worktop — our kitchen team handles the fitting, services and finishing throughout.

Explore kitchens
Modern bathroom installation with a freestanding bath, large format tiles and LED lighting

Bathrooms

Complete bathroom, en-suite and cloakroom installations, tiled and finished by the same team that starts the job.

Explore bathrooms
Brick extension with a tiled roof, white French doors and windows, opening onto decking

Extensions & Building Works

Single and two-storey extensions, renovations and refurbishments for domestic and commercial properties — one team from foundations to finish.

Explore extensions
White uPVC fascias, soffits and guttering fitted above replacement bay windows

Soffits, Fascias & Guttering

Low-maintenance uPVC rooftrim, cladding, bargeboards and guttering in white, dark grey, rosewood and light oak finishes.

Explore rooftrim

Everything Holtye Windows can do for you

Not sure what you need? See all home improvements or talk it through with us — advice is free and there’s no obligation.

Why choose us

Six good reasons to choose a local installer

National companies sell from a call centre. We survey your home ourselves, fit it ourselves, and are still just down the road afterwards.

  • One team, start to finish

    Our own surveyors and fitters handle every job, so you always know who’s turning up.

  • Honest, written quotations

    Free, no-obligation quotes with the price and specification in writing. No pressure, no gimmicks.

  • Registered and insured

    Certass registered, SafeContractor approved and fully insured, with a 10 year guarantee on every product.

  • Far more than glazing

    Kitchens, bathrooms, roofing and full building works too, so you rarely need a second contractor.

  • Made to fit your home

    Everything is surveyed and made to your openings, in the colours and finishes you choose.

  • A reputation we protect

    Rated 10/10 from 149 reviews on Checkatrade, where we’ve been vetted members since 2014.

Energy efficiency

A warmer, quieter home that costs less to heat

Old frames leak heat through the glass, the gaps and the frame itself. Replacing them is one of the most effective ways to make a house more comfortable and cheaper to run.

  • Efficient by design

    Modern, fully sculptured, lead-free profiles built to hold heat in and keep draughts out.

  • Comfortable all year

    No more sweltering summers and freezing winters — especially with an insulated warm roof.

  • Quieter rooms

    Sealed double and triple glazed units cut outside noise as well as heat loss.

  • Registered & compliant

    We’re Certass registered, so every installation is certified Building Regulation compliant.

Replacement white leaded bay window with black cladding and fascias on a Sussex home

Window Energy Ratings

  • A++
  • A+
  • A
  • B
  • C
  • D
  • E
  • F
  • G

We’ll advise on the rating that suits your home.

The Holtye Windows team outside the Holtye Windows showroom on Station Road, East Grinstead

Visit us

See it for yourself at our East Grinstead showroom

Handle the products, compare finishes and talk your project through with the people who will actually carry it out.

Book an appointment01342 410079

Recent work

Real jobs, real homes, across Sussex, Surrey & Kent

Every project below is our own work, photographed on site — no showroom mock-ups and no stock photography.

Detached Georgian-style house with a columned portico and new white sash windows with Georgian bars on both floorsThe front of the house at an angle, showing white sash windows with Georgian bars set in brick and white weatherboardingRear of the house with Georgian-bar sash windows on both floors and a glazed bifold door onto the terraceThree white sash windows with Georgian bars side by side above a kitchen sink, looking out to the garden

Case studyDetached Georgian-style home

Georgian sash windows, doors and rooftrim

Twenty-five white woodgrain sash windows with Georgian bars, three doors, an aluminium bifold and new rooftrim on a detached home.

  • Supplied and fitted 25 white woodgrain vertical sliding sash windows with Georgian bars
  • Supplied and fitted 3 woodgrain doors
  • Supplied and fitted 1 Smarts aluminium bifold door
  • Replaced the fascias and soffits
  • Replaced the guttering in an ogee profile, to the house and the rear of the garage

View this project

Dining room with herringbone flooring, a wall-mounted fire and a new oak internal doorSage green composite front door with leaded glazing and a matching glazed side panelFitted kitchen with oak-effect units, a breakfast bar and two glass pendant lightsOak-effect fitted kitchen with built-in ovens, an induction hob and under-cabinet lighting

Case studyEast Grinstead

Whole-house renovation

Windows, doors, a Supalite warm roof extension, kitchen, cloakroom, flooring and decorating — all handled by one team from start to finish.

  • Removed old and fitted new windows throughout
  • Upgraded the front door
  • Installed a Supalite warm roof extension
  • Fitted a new kitchen
  • Fitted a new WC
  • Plastered throughout
  • New flooring throughout
  • Painted and decorated

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Period red-brick house with white gables and new white windows, behind a new gravel driveway edged in granite settsBack of the house with new white sash windows and a tiled door canopy, above a sandstone patio with outdoor seatingWhite sash window tilted inwards for cleaning, beside a black back door under a tiled canopySandstone patio running past a black back door to a timber pergola with a slate roof

Case studyPeriod red-brick home

New windows, driveway and patio

New windows and doors, a gravel driveway, and a garden rebuilt around a sandstone patio and a slate-roofed timber pergola.

  • New windows and doors installed
  • New driveway
  • New patio
  • Timber-framed garden pergola with a slate roof

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Rear of a brick house with new black aluminium gable windows, first-floor doors and wide glazed doors below, with scaffolding still in placeVaulted room under construction, with two black aluminium apex windows above two sets of glazed doorsBlack aluminium apex window above glazed doors, looking out over the garden from an unfinished roomNew dark electric roller garage door, with a timber window with leaded top-lights in the brickwork above

Case studyBrick house under renovation

Black aluminium windows and doors

Black aluminium glazing across the back of a brick house, from gable windows to a wide run of doors, with a timber window matched to the front and an electric garage door.

  • New black aluminium windows and doors fitted
  • New timber window made to match the existing house at the front
  • New electric roller garage door

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White window with Georgian bars in an arched brick opening, above a weathered garden benchWhite stable door with its top half open, beside a matching window with Georgian barsThe same white stable door closed, with Georgian-bar glazing and a black monkey-tail handlePale stone-coloured stable door with a small glazed panel and a black handle, in a dark weatherboarded porch

Case studySheffield Park

Replacement windows and stable doors

Twenty-two windows replaced on a period brick house, with two stable doors and a pair of French doors, finished with astragal Georgian bars.

  • Replaced and upgraded 22 windows
  • Supplied and fitted 2 stable doors
  • Replaced a pair of French doors
  • Astragal Georgian bars, inside and out

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Hotel suite with a teal buttoned headboard and sofa, a slatted timber feature wall and full-height windowsThe same suite from another angle, showing mirrored wardrobes and a built-in deskSecond suite with a burgundy headboard and sofa, a slatted timber wall and full-height glazingSuite entrance hall with wood-effect flooring and a white panelled door, looking through to the seating area

Case studyDale Hill

Conference room to hotel suites

A conference room at Dale Hill Golf and Country Club, converted into three hotel suites and two offices.

  • Converted a conference room into three hotel suites
  • Created two new offices
  • Fitted out and finished, ready for guests

View this project

View all projects

How it works

Four simple steps from enquiry to installation

  1. Get in touch

    Call, email or send the form. Tell us roughly what you need and we’ll explain how we can help and what the job usually involves.

  2. Free survey

    We visit your property, or you come to the East Grinstead showroom, to take measurements and go through styles, colours and glass.

  3. Clear written quote

    You receive an itemised price with no obligation to proceed. Take your time over it — we won’t chase you.

  4. Installation & aftercare

    Our fitters install to the agreed schedule, tidy as they go, and back the work with a 10 year product guarantee.

Customer reviews

What our customers say

We’ve been a vetted Checkatrade member since 2014 and hold a 10/10 rating from 149 reviews. Here’s the latest feedback from Google.

Read more reviewsSee us on Checkatrade

Questions

Frequently asked questions

Can’t see what you need? Call 01342 410079 and we’ll answer it properly.

Ask us a question

What areas do you cover?

We install across Sussex, Surrey and Kent from our base in East Grinstead. If you are not sure whether you fall inside our area, get in touch and we will tell you straight away.

Are your quotes really free?

Yes. Surveys and quotations are free and carry no obligation. We can visit your property, or you can book an appointment at our showroom at 2 Station Road, East Grinstead, West Sussex RH19 1DJ. Either way you receive a written price with the specification set out clearly.

What guarantee do you offer?

Every product we supply and install carries a 10 year guarantee. We are Certass registered, SafeContractor approved and fully insured, and our conservatory roofs are JHAI approved and Building Regulation compliant.

Can you replace just my conservatory roof?

Yes — it is one of the jobs we are asked for most. A pitched, insulated tiled roof from a leading UK manufacturer replaces the existing glass or polycarbonate, so the room stays comfortable in summer and winter. Windows, panels and skylights can be added too. Read more about warm roofs.

Do you do more than windows and doors?

We do. Alongside glazing we take on renovations, refurbishments, extensions, roofing, plastering, flooring, driveways and patios, and a dedicated team handles full kitchen and bathroom installations. We work on both domestic and commercial properties.

How do I arrange an appointment?

Call 01342 410079, email customerservices@holtyewindows.co.uk, or send the enquiry form on our contact page. We are open Monday to Friday 9am–5pm and Saturday 10am–1pm.

Free quotations

Ready for a better view?

Book a free, no-obligation survey at your home, or come and see us at the East Grinstead showroom.

Request a free quote01342 410079

Mon–Fri 9am–5pm · Sat 10am–1pm