Surrey · England

Window Mastic in Shellwood Cross

Window mastic for Shellwood Cross and the surrounding area: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.

  • Gaps left after new windows were fitted
  • White mastic on grey or black frames
  • Damp patches on the reveal after heavy rain

Window mastic for Shellwood Cross homes and businesses

How we handle window mastic in Shellwood Cross

Frames and walls do not move together. Plastic and aluminium frames move with the temperature, while masonry stays fairly still. So the sealant has to stretch and recover, which is why we use a low-modulus product. Typical jobs include draughts coming in around windows and doors and damp patches on the reveal after heavy rain, across aluminium frames, composite doors and timber windows & doors.

Mastic can only go onto a dry, clean joint, so window work in Shellwood Cross is booked around the forecast. Tell us about access to every side of the house, including upper-floor windows.

Every job is covered by our 12-month guarantee.

Location
Shellwood Cross (RH2)
Region
Surrey
Guarantee
12 months on all our work
Quote
A clear price before we start
Telephone
0345 464 0079
Page updated
26 October 2026
Outdoor mastic being applied where a white frame meets red brickwork, below the fascia and gutter

DIY sealant or a professional job?

The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, then guaranteed for a year.

A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.

Frames and glazing around Shellwood Cross

Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.

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

Shellwood Cross is about 3 miles south-east of Dorking, in Surrey. If you need window mastic in Shellwood Cross, please call 0345 464 0079 or send us an email for a quick quote. We are based in Crawley and cover Surrey, Shellwood Cross included. Shellwood Cross is one of 395 places in Surrey we cover for window mastic. You can also see our page for Crawley, about 7 miles away.

Here we cover the RH2 postcode area for window mastic. Neighbouring places we cover for window mastic include Parkgate (1 mile south), Nalderswood (1 mile east), Newdigate (2 miles south), Norwood Hill (2 miles south-east) and Cudworth (2 miles south). Within a short drive, we also cover Guildford (14 miles west), Woking (15 miles north-west), Epsom (10 miles north), Horley (5 miles east), Redhill (5 miles north-east) and Ewell (11 miles north).

What’s near Shellwood Cross

We work in homes and buildings around Newdigate Brickworks and the streets around them. Shellwood Cross’s nearest station is Holmwood station, roughly 2.5 miles south-west. Well-known places in the area include Reigate Priory Museum (3.8 miles north-east) and East Surrey Hospital (4.8 miles east). Not far away are Box Hill and Reigate Heath.

Map of Shellwood Cross © OpenStreetMap contributors

What happens if it’s left?

Getting a straight, even bead on an outside frame takes practice, especially upstairs. A professional job is cut out properly, backed where needed and finished neatly, in a sealant suited to the wall. Around Shellwood Cross, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.

What you pay reflects the work, not a rough estimate. That’s why we ask about the job first.

Why choose Mr Mastic in Shellwood Cross

  • Arbo and Everbuild products
  • An ARBOMaster approved applicator
  • More than 20 years in sealant work
  • Experience in homes, commercial sites and hotels

Take a look at how sealant jobs are priced and our reviews.

What we do, step by step

A visit follows a simple pattern: we check the joints, mask and protect the surrounding surfaces, do the work and tidy away. Most jobs take a few hours for a few frames, or a day or more for a whole house. For a village or hamlet like Shellwood Cross, the journey is planned in advance: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.

  1. Each frame is looked over and we agree which ones need resealing.
  2. The old mastic is cut out and scraped back to clean surfaces.
  3. Where the gap is deep, backing rod goes in first.
  4. The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
  5. Every joint is tooled smooth and checked before we leave.

Preparing for the visit

  • Let us know about earlier repairs to the joints
  • Clear items away from the joints we’re working on
  • Let us know about parking restrictions

Ask for a quote

The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is.

Get a quick quote

Read more

Shellwood Cross questions

Is Shellwood Cross within the area you cover?

Yes. Shellwood Cross is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.

I let a flat near Holmwood station. Can you help?

Yes. We work for landlords and letting agents as well as homeowners, and several properties can go on one quote. You can phone 0345 464 0079 or send us an email with the details for a clear quote.

Is the work guaranteed?

Yes. Our 12-month guarantee covers every job.

How long should I leave it?

Most sealants are touch-dry well before they’re fully cured. We’ll tell you how long to leave the joint before we leave.

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

Yes. Plenty of draughts come through the inside joint as well as the outside, so it can be worth sealing both.

Can new window sealant be painted?

That depends on the product. Silicone isn’t paintable, but some hybrid sealants are. Tell us if you’re decorating and we’ll choose accordingly.

Can resealing stop a draught around my window?

Yes, where the draught is at the frame edge. We check where the draught is before we start.

Can you do several jobs on one visit?

Yes. Just list everything you need.

What affects the quote in Shellwood Cross

For a quick quote, just ask. The main things that affect it are:

  • How many areas need sealing
  • When we can work, for business premises
  • Whether there’s mould to deal with
  • The amount of work

Instead of a standard rate, we price the job in front of us: the amount of work, the old material and the access. You’ll know the price before we begin.

Helping us quote

Photos by email are helpful but not essential. Try to tell us:

  • Pictures of the joints, sent by email
  • How many joints, rooms or windows are involved
  • Where the job is, and your postcode
  • Whether it has been sealed before

Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we will talk you through what we’d do. When it suits you, call 0345 464 0079 or drop us an email.

Common problems we fix in Shellwood Cross

A lot of older mastic was never designed to stay flexible. Once it’s rigid, every bit of frame movement pulls at it, and a gap opens along one edge.

Look out for any of the following:

  • Draughts coming in around windows and doors
  • Damp patches on the reveal after heavy rain
  • Gaps where the sill meets the wall
  • Gaps between the frame and the inside reveal

Rented homes near Holmwood station change hands often, and renewing tired window mastic between tenants heads off draught and damp complaints.

Questions to ask before you book

  • How long the guarantee is
  • What happens if they find a problem under the old sealant
  • How the surfaces are prepared before sealing
  • Who does the work, and how experienced they are

10 questions to ask before booking

Surface by surface

uPVC windows

The frame is cleaned with a product that won’t harm the plastic, then the new bead is laid against the frame and the wall and tooled smooth.

Timber windows & doors

Soft or rotten wood can’t be sealed successfully. If we find rot, we’ll tell you before going ahead, as that is a job for a joiner.

Work for landlords, hotels and businesses

We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.

Failed sealant is one of the commonest items on a check-out report. Several properties can be quoted together.

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