South East England and London

Window Mastic in West Berkshire

Window mastic in all 155 towns and villages of West Berkshire, done properly, with a clear quote before we start and a one-year guarantee.

Need window mastic in West Berkshire?

Window mastic across West Berkshire: what to expect

The mastic around a window or door seals the gap between the frame and the wall. Once that seal fails, wind and rain find the gap. Our applicators cut it out and replace it with a flexible, weatherproof sealant. We work on aluminium frames, patio & French doors and uPVC windows, and people most often call us about a bead that doesn’t match the frame and mastic that’s falling out in pieces.

We bring everything the job needs with us. After a quick look at the joints together, we protect the area and start. Most jobs take anything from an hour or two to a full day, depending on how many frames there are.

  1. We start by checking each window and door with you.
  2. We remove the old mastic and clean the frame and the wall.
  3. We fit backing rod in deep gaps so the sealant is the right depth.
  4. New exterior sealant goes on in a matching colour and is tooled smooth.
  5. Finally we tidy up and check each joint.

How we quote

A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you are unsure, ring 0345 464 0079 or send us an email for an honest opinion and a quote.

Why choose Mr Mastic

  • Sealant colour chosen to suit
  • Anti-fungal sanitary silicone in wet areas
  • We agree the colour with you first
  • Tidy, careful work

Ask for a quote

To get a quote, ring 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. You’ll have a clear quote before work begins.

What’s near Newbury

We work in homes and buildings around St Nicolas Church, Victoria Park and St Bartholomew's School. Other local landmarks include The Diamond Tap (less than half a mile north-east), St Nicolas C.E. Junior School (within half a mile south) and St Bartholomew's School (0.6 miles south-west). There’s a railway station in Newbury itself: Newbury station. A little further out are Donnington Castle (1.6 miles north-west) and West Berkshire Community Hospital (1.5 miles east). Not far away are Audrey's Meadow.

Windows and doors across West Berkshire

West Berkshire has everything from older homes with timber frames to newer ones with uPVC. Walls facing the weather take the most punishment.

Most of the South East has hard water, so limescale builds up on sealant, grout and fittings. Whatever the job in West Berkshire, surfaces are cleaned back properly before new sealant goes in.

Newbury: Letting a property close to Newbury station? Then renewing tired window mastic between tenants heads off draught and damp complaints. Homes close to St Nicolas Church include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame.

Looking after it afterwards

How long the joints last depends on use and care. Here’s what we suggest:

  • Make sure the drainage slots aren’t blocked
  • Check the mastic once a year
  • Air rooms to keep condensation down around windows
  • Don’t aim a pressure washer at the joints

Keep the new mastic undisturbed while it cures, for as long as we advise. Keep jet washers away from the frames.

Leaks generally show up in wet, windy weather, but sealant goes on best when frames and walls are dry. Sorting cracked mastic early means the joint is sound before the bad weather.

Honest limits

Before you book, it’s worth knowing the limits too:

  • Faulty window hardware
  • Worn gaskets, brush seals or a door that has dropped
  • A frame that has rotted at the joint

Should I try it myself first?

Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.

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

Leave it or put it right?

Once mastic fails, rain can get between the frame and the wall. Left long enough, it can stain inside walls, spoil plaster and rot wooden frames. A reseal is a much smaller job.

Comparing quotes

  • Whether the sealant suits the joint
  • The length of the guarantee
  • What preparation is included
  • Whether all the old sealant comes out first

Surface by surface

Aluminium frames

Large aluminium doors have long joints down each side and across the head, and the threshold joint takes a lot of water. Each is cleaned, backed where deep and resealed.

Patio & French doors

Patio and French doors have the longest joints on most houses. The threshold and the bottom corners take the most water, so we pay close attention there.

West Berkshire questions

Is it messy?

We keep the work tidy. Nearby surfaces are protected, and the area is left clean when we finish.

Where do you work from?

We work from Crawley. Our applicators cover West Berkshire, along with the rest of our area.

Do you cover West Berkshire?

Yes. We work in West Berkshire. For a quote, ring 0345 464 0079 or email us.

When is the sealant fully cured?

It depends on the product and the conditions. Before we leave, we’ll tell you the cure time.

How many windows can you do in a day?

That depends on the number of frames, how they’re reached and the state of the old mastic. We’ll tell you how long your job needs when we quote.

Is it worth trying it myself?

Some simple jobs can be done by a careful DIYer. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.

Will there be a smell?

Possibly a little. It fades as the sealant cures, and ventilation helps.

A to Z of places in West Berkshire

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