West Sussex · England

Window Mastic in Staplefield

Window mastic for Staplefield and the surrounding area: careful preparation, the right product and tidy work. Call for a quick quote.

  • Cracked sealant at the sill ends
  • Black, perished sealant on frames
  • Cold air getting in at the frame edge

Window mastic near Staplefield

Staplefield questions

Is Staplefield within the area you cover?

Yes, Staplefield is covered. We work across London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.

Can you do window mastic in Staplefield?

Yes. We work across London and the South East, and Staplefield is part of that. Just call 0345 464 0079 or send us an email with a few details of the job.

Can you do the inside joint as well?

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

What does window mastic cost?

Every job is different, so each one gets its own quote. For a quick quote, call 0345 464 0079 or drop us an email and let us know what needs doing and where.

Can landlords and businesses book you?

Yes. Domestic, commercial and hotel work are all part of what we do.

Do you remove the old sealant?

Yes. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.

How long should I leave it?

It depends on the product. We tell you how long to leave it before we go.

Will you leave a mess?

No. We protect the surfaces around the joints, and we clear up the old sealant and our materials before we leave.

How we handle window mastic in Staplefield

Behind a thin line of old mastic there’s sometimes a deep void. Packing it solid with sealant gives a joint that can’t flex, so deep gaps get backing rod first. That way the new bead bonds to the frame and the wall only. We work on patio & French doors, timber windows & doors and composite doors, and people most often call us about draughts coming in around windows and doors and rushed sealant from a window installation.

Outdoor sealant needs dry, clean surfaces, so work on frames around Staplefield is planned for dry weather. Tell us about access to every side of the house, including upper-floor windows.

All of our work is guaranteed for twelve months, and the guarantee is the same wherever you are.

Outdoor mastic being applied where a white frame meets red brickwork, below the fascia and gutter
Location
Staplefield (RH17)
Wider area
West Sussex
Cover
12 months on all our work
Quotes
Quoted before any work starts
Call
0345 464 0079
Page updated
26 October 2026

What affects the cost of window mastic

Jobs vary more than people expect. What affects the quote:

  • When we can work, for business premises
  • Whether the work is at height
  • How much old sealant there is and how hard it is to remove
  • Mould in or behind the old joints

Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs, along with when we can work on site. Call for a quick quote and we’ll explain what it covers.

Asking for a quote

To help us quote quickly, let us know:

  • Pictures of the joints, sent by email
  • The rough size of the job
  • The address or postcode of the job
  • Whether it has been sealed before

For a quote, call 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. We will give you a clear price before any work starts.

Should I try it myself first?

The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.

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.

Why act early in Staplefield

Running fresh sealant over the old joint is tempting, but new sealant cannot bond to old, crumbling mastic. It peels before long, and water still gets in behind. Proper resealing starts with removing the old joint. In a small place like Staplefield, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.

Leaving a failed joint generally makes the job bigger, not smaller. If you’re unsure, ring 0345 464 0079 or send us an email and we’ll give you an honest view and a quote.

Why us?

  • An ARBOMaster approved applicator
  • We never seal over old sealant
  • Sanitary silicone with an anti-fungal additive in wet areas
  • 4.9 on Google from 180+ five-star reviews

Take a look at what affects the cost and our reviews.

What we can’t put right

We’d rather tell you now than do work that will not last, so these are the limits:

  • Damp problems in the wall away from the window
  • Rotten timber, which needs a joiner first
  • Misting between the panes of a double-glazed unit (that needs a new unit)

If in doubt, ring 0345 464 0079 or email us and we’ll say what we think.

Where we work in Staplefield

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

What happens on the day

Once we’re on site, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. Most jobs then take a few hours for a handful of frames, longer for a whole house. Somewhere like Staplefield needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.

  1. We check how each frame can be reached safely.
  2. All the failed sealant is cut away, along with any loose debris.
  3. Frame and wall are cleaned and must be dry before sealing.
  4. Backing rod fills deep voids and the sealant goes in on top.
  5. We tool the joint so water runs off, then clear up.

Before we arrive

  • Mention if the joints have been sealed before
  • Clear items away from the joints we are working on
  • Mention any leaks or damp you’ve noticed

How to get a quote

Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we will talk you through the work.

Get a quick quote

Advice

Different surfaces, different methods

Composite doors

If the door itself is draughty, the issue may be the door seals or hinges rather than the frame mastic. We seal the frame and let you know about anything else.

uPVC windows

The frame is cleaned with a product that will not harm the plastic, then the sealant goes in between frame and wall.

Windows and doors in Staplefield

Historic houses like Tyes Place (about 0.4 miles east) are a reminder that the area around Staplefield has older buildings as well as new. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window. Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.

Managing a site like St Mark's CofE Primary School? Then the mastic around its windows and doors needs looking after like any other building’s. If you live in an older home near Church of St Mark, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. Rented homes near Balcombe station change hands often, and cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.

Staplefield is about 4 miles north-west of Haywards Heath, in West Sussex. Jobs in Staplefield get the same care as everywhere else we work: old sealant removed completely, careful preparation and a one-year guarantee. We cover 371 towns and villages across West Sussex, from the larger towns to small villages.

Work in RH17 works the same way as everywhere else we cover. Window mastic is available to properties on Cuckfield Road and Rose Cottage Lane. If you’re just outside Staplefield, we cover Slough Green (1 mile south), Warninglid (1 mile south-west), Brook Street (2 miles south-east), Whitemans Green (2 miles south-east) and Balcombe (2 miles north-east). We also work in nearby towns such as Crawley (5 miles north), Horsham (7 miles west), Haywards Heath (4 miles south-east), Burgess Hill (6 miles south), East Grinstead (10 miles north-east) and Shoreham-by-Sea (14 miles south).

Local landmarks in Staplefield

Around Staplefield, our work takes us to homes and buildings near The Victory Inn. Staplefield’s nearest station is Balcombe station, roughly 2.1 miles north-east of the centre. Other landmarks nearby include Cuckfield Museum (2.5 miles south-east) and St Francis Hospital (4.7 miles south-east). The countryside around Staplefield includes Blunts Wood and Paiges Meadow and Tilgate Lake.

Map of Staplefield © OpenStreetMap contributors

Work for landlords, hotels and businesses

Landlords and agents in Staplefield can book us as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order.

Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance.

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