Hampshire · England

Window Mastic in Stroud

Window mastic for Stroud, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.

  • Cold air getting in at the frame edge
  • Leaking joints at the ends of sills
  • White mastic on grey or black frames

Need window mastic in Stroud?

How we handle window mastic in Stroud

Some gaps around frames are far deeper than they look. Packing it solid with sealant gives a joint that can’t flex, so we fit backing rod to set the right depth. That way the new bead bonds to the frame and the wall only. Common call-outs are for mastic that has split away from the wall and cracked internal joints between frame and plaster, on uPVC windows, window sills and patio & French doors.

Somewhere as small as Stroud, older homes often have timber frames set in stone or brickwork. Older buildings like these don’t always suit modern silicone, and sometimes a traditional sand mastic is the better choice.

Big or small, it’s backed by our 12-month guarantee in Stroud and across Hampshire.

Place
Stroud (GU32)
Wider area
Hampshire
Guarantee
One year on every job
Price
Quoted before any work starts
Call
0345 464 0079
Page updated
26 October 2026
Mr Mastic applicator sealing the top of a white uPVC door frame on a red-brick house

Quotes for window mastic in Stroud

Some jobs are bigger than they look, and some smaller. What affects the quote:

  • Whether old sealant or filler has to be cut out
  • Which sealant suits the joint
  • Any mould that needs treating
  • Whether the work is at height

Doing several joints on one visit is generally more efficient than separate visits, so it’s worth mentioning everything you’d like done. You’ll get one clear quote for the whole job.

Helping us quote

Photos by email are helpful but not essential. Please mention:

  • Where the property is
  • Whether it’s a home or a business
  • Photos by email, if that is easy
  • Whether it has been sealed before

We quote each job on its own. Just phone 0345 464 0079 or send us an email with the details and send pictures if you have them.

Why act early in Stroud

Resealing frames is a short job: it takes a morning for a couple of windows and a door. Wait for damp to appear and there may be plaster and decorating to sort out too. Older cottages and farmhouses around Stroud can have timber floors and frames, where water from a failed joint can cause rot if it’s left.

No two jobs are quite the same, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all make a difference.

Why Stroud clients choose us

  • Full insurance on every job
  • Approved under the ARBOMaster scheme
  • Sealant colour chosen to suit
  • 4.9 on Google from 180+ five-star reviews

Read our cost guide and our reviews.

How the visit works

When we get to you, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. After that, the work takes a morning for a couple of windows and a door. Somewhere like Stroud needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.

  1. First we look at every frame and agree the list.
  2. Next the failed sealant is cut away and the joint cleaned.
  3. We fit backing rod in deep gaps so the sealant is the right depth.
  4. We apply a weatherproof sealant to match the frame and tool it neatly.
  5. Every joint is checked before we leave.

Before we arrive

  • Clear the area around the work
  • Tell us about access, such as stairs, a lift or high-level joints
  • For business premises, tell us about site rules or sign-in

Get a quote

For a quick quote, get us on the phone, or send an email if you’d rather. Tell us about the joints that need doing and we’ll talk you through the work and give you a clear price.

Get a price

Advice

DIY sealant or a professional job?

Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.

A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly, so just mention it when you contact us.

Honest limits

In fairness, some problems need a different trade:

  • Damp coming through the wall itself rather than the frame joint
  • Broken hinges, locks or handles
  • Condensation trapped between the panes

Not sure which it is? You can phone 0345 464 0079 or drop us an email and we will tell you honestly before booking.

Joints and surfaces we work on

  • Patio & French doors
  • Timber windows & doors
  • Aluminium frames
  • uPVC windows
  • Composite doors
  • Window sills

For landlords and businesses

Failed sealant is one of the commonest items on a check-out report. We can quote for more than one property at once.

Housing providers, facilities teams and property managers book us too. We can quote a run of properties together, and we are fully insured for the work.

Window mastic in Stroud: local notes

Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.

For site and facilities teams at buildings such as Langrish Primary School, the mastic around its windows and doors needs looking after like any other building’s. Rented homes near Petersfield station change hands often, and renewing tired window mastic between tenants heads off draught and damp complaints. If you live in an older home near Stroud Mission Church, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.

Stroud is about 2 miles west of Petersfield, in Hampshire. Whether you are in the middle of Stroud or further out, window mastic is available for homes and businesses alike. Our area takes in 683 places across Hampshire. For nearby work, see our Portsmouth page, about 15 miles away.

Jobs for window mastic in GU32 is quoted and booked the same way as anywhere else. Window mastic is available to properties on Winchester Road, Stroudfields and Ramsdean Road and the roads around them. We also cover the places around Stroud: Langrish (1 mile west), Petersfield (2 miles east), Froxfield Green (2 miles north-west), Steep (2 miles north-east) and High Cross (2 miles north). Within a short drive, we also cover Winchester (15 miles west), Havant (10 miles south), Fareham (15 miles south-west), Horndean (7 miles south), Alton (10 miles north) and Waterlooville (9 miles south).

Around Stroud

In Stroud, that means homes and buildings near The Petersfield School, Morton House School and Seven Stars pub, among other places. The closest station to Stroud is Petersfield station, about 1.3 miles east of the centre. Other landmarks nearby include Petersfield Community Hospital (1.3 miles east) and Clanfield Earthwork (4.2 miles south). Green spaces nearby include Liss Riverside Railway Walk South and Pidham Hill.

Map of Stroud © OpenStreetMap contributors

FAQs for Stroud

Do you work for landlords with property near Petersfield station?

Yes, landlords and agents are among the people we work for, and several properties can be quoted together. You can phone 0345 464 0079 or email us with the details for a clear quote.

Is Stroud within the area you cover?

Yes, we do. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.

Will you leave a mess?

Tidy work is part of the job. Nearby surfaces are protected, and we clear up when we’re done.

Do I need to be at home?

For indoor joints, yes, someone needs to let us in. Once we’ve agreed the job, you don’t need to watch us work.

How long should I leave it?

Many sealants skin over quickly but take longer to cure fully. We will tell you how long to leave the joint before we leave.

How much does window mastic cost in Stroud?

There’s no set price, as it depends on the job: its size, the old material, access and the product needed. We agree the price before any work begins.

Should I try DIY first?

That depends on the joint. High-level, external movement and fire-rated joints are professional jobs.

Can you reach windows above the ground floor?

Yes, where they can be reached safely. Tell us about access when you get in touch so we can plan the job.

Looking after it afterwards

Once the sealant has cured, a few habits help it last:

  • Keep jet washers away from the mastic
  • Keep drainage slots and sill grooves clear
  • Air rooms to keep condensation down around windows
  • Look round the frames every year or so

Clean the frames with mild soapy water, and avoid solvent cleaners on the sealant.

Signs to watch for: cracks in the mastic, gaps you can see light through, damp on the reveal or mould around the inside of the frame. Any of these is worth a call.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job