Inside the S.E.A window factory — frames on racks and workbenches in warm industrial light

About S.E.A

A family business, made in Reading

Four decades of making and fitting windows, doors and conservatories for the town we live in.

S.E.A Windows and Doors has been trading for more than 40 years — long enough to have fitted second sets of windows for houses we first measured decades ago.

We're family-run, and it shows in how we work. Across the team we hold over 200 years of combined experience in uPVC, aluminium and conservatories, and we partner with industry-renowned manufacturers — Spectus, Solidor, Monarch, Sapa and Cortizo — for our profile systems.

What hasn't changed in four decades: quality and security come first, straight answers beat sales patter, and the job isn't finished until you're happy with it.

Close-up of cut window profiles and tooling on the factory workbench

Our factory

Come and see your windows being made

Our factory sits at Unit 1A, North Street — five minutes from Reading town centre. It's where every frame we sell is manufactured, and the door is open: visit, look around, and watch your windows take shape on the bench.

Manufacturing in-house is also why we never use subcontractors. The surveyor who measures your openings and the fitters who install your frames are S.E.A people, accountable to the same family name.

Arrange a visit
40+ years trading
200+ years of combined experience
0 subcontractors — ever
1 factory, here in Reading

How we work

Three things we won't compromise on

Craft

We make what we fit. When the same firm builds the frame and installs it, corners don't get cut — there's nowhere for them to hide.

Straight answers

Innovation where it helps, honesty everywhere. You'll get a clear recommendation and a fair price, not a commission-chasing pitch.

Aftercare

We're five minutes away and we answer the phone. Service doesn't stop at installation — your satisfaction is the point.

Credentials

Accreditations & partners

FENSA Registered BSI Kitemark Spectus Solidor Monarch Sapa Cortizo Door-Stop

Download our partner brochures

Reviews

Word gets around

The quality of the windows is superb — they've completely lifted the look of the house.
Roy Wimbledon
Built to last. You can feel the difference in the materials and the fit the moment you close one.
Michael Thompson
Our bifold doors glide beautifully and have transformed how we use the garden.
Sarah White

Come and see your windows being made

Unit 1A, North Street, Reading RG1 7DA — five minutes from the town centre.

Call 0118 950 8122 Free quote