West Berkshire · England

Window & door mastic in Chapel Row, West Berkshire

Problem with your window and door frames in Chapel Row? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.

  • Rain getting in at the frame or under the sill
  • Cracked or shrunken mastic around the frame
  • Sealant in the wrong colour for the frame

Book window mastic in Chapel Row

About our window mastic in Chapel Row

Mr Mastic’s applicators have more than 20 years’ experience with window and door sealants. We’re fully insured ARBOMaster approved applicators, and we give a 12-month guarantee on the work. If you are dealing with black, perished sealant on frames and gaps where the sill meets the wall, we can help, whatever the surface.

Outdoor sealant needs dry, clean surfaces, so work on frames around Chapel Row is planned for dry weather. Let us know about access to all the frames, upstairs ones included.

Each job carries a 12-month guarantee, large or small.

Location
Chapel Row (RG7)
Region
West Berkshire
Cover
12 months on all our work
Price
Quoted before any work starts
Phone
0345 464 0079
Updated
26 October 2026
Outdoor mastic being applied where a white frame meets red brickwork, below the fascia and gutter

What sealant work can’t fix

Honest advice matters more to us than a booking, so here’s what new sealant will not do:

  • Condensation trapped between the panes
  • Draughts through the window seals rather than the frame
  • Soft or decayed wood in the frame

If you are not sure, just call 0345 464 0079 or email us and we’ll give you a straight answer.

Where we work in Chapel Row

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

Different surfaces, different methods

Aluminium frames

Coated aluminium needs a compatible sealant. We use a neutral-cure product.

Patio & French doors

Door frames take knocks and movement every time the doors are used. A flexible sealant copes with that, where a rigid one would crack.

When to call us in Chapel Row

Sun, frost and rain wear sealant out. Sunlight dries the surface out, and over the years it loses its give, cracks and comes away.

The problems people generally mention when they call are:

  • Gaps between the frame and the inside reveal
  • Water coming in at the bottom corners of a door
  • Cracked sealant at the sill ends
  • White mastic on grey or black frames

In the older streets around Douai Abbey Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.

What your quote should include

  • What the cure time is
  • The length of the guarantee
  • Whether they’re fully insured
  • How the surfaces are prepared before sealing

10 questions to ask before you book

How to look after the new joints

Joint life depends on how it’s used and looked after. We suggest:

  • Repaint timber before it’s bare
  • Don’t use solvent cleaners on the joint
  • Make sure the drainage slots are not blocked
  • Walk round the house once a year and look at the joints

Try not to touch the new joint while it cures, following the cure time we give you. Keep jet washers away from the frames.

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. If you notice one, it’s time to get the joint looked at.

Chapel Row questions

Can you help a landlord with a rental near Midgham 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 drop us an email with the details for a clear quote.

Do you cover smaller places like Chapel Row?

Yes, we do. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.

Can new sealant go over the old?

No. New silicone will not bond to old silicone, and anything trapped underneath, including mould and water, stays there. We remove it all first.

Can you reach windows above the ground floor?

Yes, if safe access is possible. Higher or awkward frames may need extra access, and we’ll confirm what’s needed.

Can you seal the gap between the frame and the plaster indoors?

Yes. The outside joint keeps the weather out, and the inside joint stops draughts and finishes the reveal. We can do either or both.

Where do you work from?

We are based in Crawley, and we work across South East England, London and Scotland.

Is it messy?

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

Can you work on commercial sites?

Yes. Hotels, offices and other businesses use us and we are fully insured.

Should I try it myself first?

Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.

If you’ve already had a go yourself, that is fine. We remove it and do the joint properly.

Window mastic in Chapel Row: local notes

London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.

If you look after a building such as Woolhampton C.E. Primary School, its window and door frames need their mastic kept sound, just like a home’s. If you let a flat or house near Midgham station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.

Chapel Row is about 4 miles east of Thatcham, in West Berkshire. Wherever you are in the RG7 postcode area, we cover window mastic for homes and businesses. 155 places in West Berkshire are on our list, large and small. There’s also a page for Reading, roughly 9 miles from Chapel Row.

Work in RG7 works the same way as everywhere else we cover. We cover properties on Hatch Close, Paradise Lane and Hatch Lane and the roads around them. We also cover Upper Woolhampton (1 mile south-east), Midgham Green (1 mile south-west), Beenham (1 mile east), Tutts Clump (1 mile north-east) and Beenham Stocks (2 miles east). We also work in nearby towns such as Newbury (6 miles west), Thatcham (4 miles west), Burghfield Common (5 miles east), Speenhamland (6 miles west), Hungerford (15 miles west) and Spencers Wood (9 miles east).

What’s near Chapel Row

Typical jobs here are in homes near The Bladebone Inn, among other places. The closest station to Chapel Row is Midgham station, roughly 1.7 miles south of the centre. Well-known places in the area include West Berkshire Community Hospital (5 miles west) and Yattendon Castle (3.5 miles north). Green spaces nearby include Hosehill Lake and Nature Discovery Centre.

Map of Chapel Row © OpenStreetMap contributors

For landlords and businesses

We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.

We work for landlords and agents as well as householders. Resealing between tenancies keeps a property looking cared for.

What we do, step by step

We keep the work tidy and contained to the area we’re working on, so you can get on with your day. Expect the work to take a few hours for a handful of frames, longer for a whole house. Somewhere as small as Chapel Row, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.

  1. We check each frame and agree which ones need doing.
  2. We remove the old mastic and clean the frame and the wall.
  3. Deep gaps are filled with backing rod to set the depth.
  4. We apply a weatherproof sealant to match the frame and tool it neatly.
  5. Finally we tidy up and check each joint.

Getting ready for the visit

  • Keep pets and children clear of the area while we work
  • Try not to wet indoor joints just before the visit
  • On commercial sites, let us know about site rules

Getting a quote

Quotes start with a quick conversation. Describe the problem, the location and the size of the job. Whenever you’re ready, ring 0345 464 0079 or drop us an email.

Get a quick quote

Related advice

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