Windows
A-rated casements, sash and tilt-and-turn, in white, wood-effect and colour. Right up to triple glazing.
Explore windows →
Northallerton · Family-run since 2002
Windows, doors & conservatories, done properly.
Quality installations across North Yorkshire, Durham and Cleveland — quietly, tidily, and without the hard sell. Over twenty years of getting it right.
4.9★83 Google reviews
20+ yrsServing the region
FreeNo-obligation quotes
Free quotes from the owner, in person.
4.9/5 from 83 Google reviews
Which? Trusted Trader
Family-run since 2002
What we fit
Everything for the outside of your home.
One family firm, four things done properly. Supplied, fitted and finished by the same people who quoted you.
Doors
Composite front doors, French, patio and bifolds — secure, warm and built to be the best-looking thing on the street.
Explore doors →Conservatories
Extra room you'll actually use all year — with warm solid roofs and sunrooms that keep the light and lose the chill.
Explore conservatories →Roofs & Roofline
Solid conservatory roofs, plus fascias, soffits and guttering that stop the drips and finish the job cleanly.
Explore roofs →
The S&K way
No pressure. No mess.
No pressure. No mess.
No fuss.
The bits that put people off replacing their windows — the pushy salesman, the sales-office pressure, the mess left behind — are exactly the bits we've done away with.
A price you can trust
The written quote is the price you pay — no hidden extras once we've started.
The owner quotes you
Every quote is done by Graham, the owner — free, in person, and with honest advice, not a script.
We leave it spotless
Dust sheets down, rubbish taken away, glass cleaned before we go. You'd hardly know we'd been.
★★★★★
"The fitters were meticulous, pleasant and tidy, and we were kept well informed the whole way through. I'd highly recommend them to anyone."
A
Alison M.Northallerton · Windows & doors
Recent work
Start your projectA few jobs from around the region.
Replacement windowsWindows
Composite front doorDoors
Solid-roof conservatoryConservatories
What people say
Rated 4.9 from 83 reviews.
Verified reviews from Google and the Which? Trusted Trader scheme.
★★★★★
“We had a tired conservatory replaced by the team. We cannot rate them highly enough — surveyed, quoted very competitively, and completed in a week exactly as promised. Professional and tidy throughout.”
★★★★★
“I needed four new windows in a top-floor flat, which meant scaffolding. A real can-do company: a very reasonable quote, and they stuck to every date and time arranged.”
★★★★★
“Superb experience from start to finish. Pricing was competitive and the guidance on colour schemes and designs was excellent.”
★★★★★
“Recommended by a relative who is fastidious and house-proud — high praise indeed. New bay windows fitted, and they were brilliant at covering everything and clearing up.”
★★★★★
“No waiting for the phone to be answered, no missed appointments, and no promises left unfulfilled. Typical of the way they work.”
★★★★★
“We replaced all the fascias, soffits, guttering, windows and doors. They impressed us on the first visit with their knowledge and approachability. Thoroughly recommended.”
★★★★★
“From the initial visit and advice, the experience was exceptional. Clearly experienced, and the fitting team are friendly and very efficient.”
★★★★★
“It's rare to have a job done with absolutely no issues at all — but that was our experience. A perfect job from start to finish.”
Where we work
Proudly local to North Yorkshire.
Based on Standard Way in Northallerton, we cover the market towns and villages across North Yorkshire, County Durham and Cleveland.
NorthallertonThirskBedaleYarmStokesleyGreat AytonDarlingtonStockton-on-TeesRichmondLeyburn
Free, no-obligation
Let's get you a proper price.
Give us a ring or drop us a line. We'll come and measure up, talk through your options, and leave you a written quote — no pressure to sign anything.
Home / Windows
Windows that keep the warmth in.
A-rated as standard, right up to triple glazing. Fitted properly, sealed tightly, and finished neatly — in Northallerton and across the region.
Craftsmanship
Measured, made and fitted with care.
Every window is measured on site and fitted by our own team — no sub-contractors, no shortcuts. We seal, finish and clean up so the job looks right the day we leave.
The range
Choose the style that suits your home.
Casement windows
The classic. Sturdy, efficient and available in every colour and finish.
Sliding sash
Traditional charm for period and character properties, with modern performance.
Tilt & turn
Tilt in for ventilation, turn to open fully — easy to clean and secure.
Bay & bow
Add space and light, and give a flat façade a bit of welcome shape.
Why they perform
Warmer rooms, lower bills, less noise.
A-rated as standard
Energy-efficient glass and warm-edge spacers keep heat where it belongs. Triple glazing available.
Secure by design
Multi-point locking and toughened glass options, tested to keep your home safe.
Quieter inside
Sealed double and triple glazing noticeably cuts road and weather noise.
Before & after
Drag the slider to see the difference.
BeforeAfter
BeforeAfterGood to know
Common questions.
Do you use your own fitters?+
Yes. Your installation is carried out by our own experienced team, not sub-contractors — so the quality is consistent and we stay accountable from start to finish.
How long does an installation take?+
Most window jobs are finished within one to two days, depending on how many we're fitting. We'll give you a clear timeframe with your quote.
Can I get coloured or wood-effect frames?+
Yes — anthracite grey, black, cream, Chartwell green, oak and rosewood effects and more. Graham will bring samples when he measures up.
Are your windows guaranteed?+
Yes. Frames and glazing come with substantial guarantees, and we stand behind our own workmanship. We'll go through the details with you.
Recent work
Get a quoteNew windows around the region
Fancy warmer, quieter windows?
Free quote, done by the owner — honest advice, no pressure.
Home / Doors
A front door worth knocking on.
Composite front doors, French doors, patio sliders and bifolds — warm, secure and beautifully finished. First impressions, sorted.
Kerb appeal
The best-looking thing on the street.
A new door changes the whole face of a house. We'll help you choose the colour, glass and furniture, then fit it to close sweetly and lock solidly for years.
The range
Every way in and out.
Composite front doors
Solid, insulated and secure, in dozens of colours and glazed styles.
French doors
Open your home to the garden with a classic, elegant double door.
Patio sliders
Big glass, smooth glide, minimal frame — maximum light and view.
Bifold doors
Fold the whole wall away and bring the outside in on warm days.
Built to last
Handsome on the outside, tough underneath.
Serious security
Multi-point locks, anti-snap cylinders and reinforced frames as standard.
Warm & weathertight
Insulated cores and quality seals keep draughts and rain firmly outside.
Your colour, your style
Dozens of colours and glass designs, with furniture to match. Make it yours.
Recent work
Get a quoteA few doors we've fitted
Time for a new front door?
Free quote, fitted by people who take pride in it.
Home / Conservatories
An extra room for every season.
Conservatories, orangeries and warm solid-roof sunrooms — designed so you'll actually use them in January, not just July.
Warm all year
Light-filled, and comfortable in every season.
A solid, insulated roof turns a conservatory from a summer-only space into a proper room you'll use all year — quieter, cosier, and part of the house.
The options
Find the right shape of extra space.
Solid-roof sunrooms
A warm, insulated roof means comfortable temperatures all year round.
Orangeries
Brick pillars and a lantern roof — a room that feels part of the house.
Edwardian & Victorian
Classic glazed styles that make the most of light and garden views.
Roof upgrades
Already have a cold conservatory? We'll replace the roof and reclaim the room.
Done right
From first sketch to final clean-up.
Planning handled
We help with design and, where it's needed, obtaining planning permission.
Warm all year
Insulated roofs and efficient glazing mean a room that works in every season.
One team throughout
Base, build and glazing by the same trusted crew — no sub-contractor surprises.
Recent work
Get a quoteConservatories we're proud of
Before & after
From cold glass roof to a room for all year.
BeforeAfterDreaming of more space?
Let's sketch it out together. Free quote, no obligation.
Home / Roofs & Roofline
The finishing touch, done properly.
Warm solid conservatory roofs, plus fascias, soffits and guttering that protect your home and tidy up the eaves.
What we fit
Protect the edges, lift the whole house.
Solid conservatory roofs
Swap glass or polycarbonate for a warm, quiet, insulated roof.
Fascias & soffits
Maintenance-free uPVC boards that resist rot and never need painting.
Guttering & downpipes
Keep rainwater moving and away from your walls, cleanly channelled.
Cladding & trims
Neat, weatherproof finishing to gables, porches and bay roofs.
Why it matters
Small job, big difference.
Protects the structure
Sound roofline keeps water out of your walls, timbers and loft.
No more painting
Modern uPVC roofline is wipe-clean and won't flake, rot or fade.
Tidy, finished look
Crisp lines along the eaves make the whole property look cared-for.
Recent work
Get a quoteRoofline & fascia jobs
Sorting the roofline too?
We'll take a look and give you an honest, free quote.
Home / About
A family firm, not a sales machine.
Since 2002, S&K Windows has fitted windows, doors and conservatories across North Yorkshire — the same way, every time. No pressure, no rush, and no mess left behind.
Out and about across North Yorkshire, Durham & Cleveland
Meet the owner
Graham does your quote himself.
When you call S&K, you deal with Graham Watson — the owner, and the person responsible for your job. Graham has been part of the business for over twenty years and now runs it, carrying on exactly the way it's always been done.
Every quote is done by Graham in person, free of charge, with honest advice about what your home actually needs. No commission-hungry rep, no "today only" price, no signing on the night — just a written quote and the time to think it over.
2002Family-run since
4.9★From 83 reviews
Which?Trusted Trader
Founded by Stephen Darby. Stephen started S&K in 2002 and spent over two decades building its reputation across the region. Now retired, he leaves the business in the hands of the team he worked alongside for more than twenty years — with the same no-pressure, quality-first promise firmly intact.
What you can count on
The promises we actually keep.
Which? Trusted Trader
Independently assessed and endorsed against a strict code of conduct.
Honest, upfront quotes
A clear written price from the owner — no pressure, and no surprises later.
Local & accountable
We live and work here. Our reputation across the region is everything to us.
Come and have a chat.
Call in at the showroom on Standard Way, or ask us to come to you.
Home / Get a quote
Get your free, no-obligation quote.
Tell us a little about what you're after and we'll be in touch — usually the same day — to arrange a visit and a written price.
Call us
01609 775472 — we'll usually pick up.
Email us
Visit the showroom
9 Barkers Court, Standard Way Industrial Estate,
Northallerton, North Yorkshire, DL6 2BF
Showroom hours
Mon–Fri 10am–4pm.
Evening & weekend appointments available on request.
Which? Trusted Trader · Rated 4.9 on Google