West Sussex · England
Window Mastic in Coneyhurst
Window mastic for Coneyhurst, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Old mastic that has gone black or come away
- Draughts coming in around windows and doors
- Rushed sealant from a window installation
How it works
Once we are on site, we check the joints match what you told us. If anything is different, we explain it before carrying on. After that, the work takes most of a day for a typical house, less for a few frames. For a village or hamlet like Coneyhurst, the journey is planned in advance: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- We check each frame and agree which ones need doing.
- The old mastic is cut out and the surfaces cleaned back.
- Deep gaps are filled with backing rod to set the depth.
- New exterior sealant goes on in a matching colour and is tooled smooth.
- Every joint is checked before we leave.
How to prepare
- Let us know about earlier repairs to the joints
- Mention any leaks or damp you’ve noticed
- Tell us about access, such as stairs, a lift or high-level joints
Getting a quote
For window mastic in Coneyhurst, phone 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and you will get a clear quote before work begins.
Read more
How we handle window mastic in Coneyhurst
A cold draught around a closed window often comes from the frame edge. A new joint stops the air getting through and quietens the whistle on windy days. Where the air is getting in through the window itself, we will say so. Common call-outs are for cold air getting in at the frame edge and rain getting in at the frame or under the sill, on timber windows & doors, uPVC windows and aluminium frames.
Outdoor sealant needs dry, clean surfaces, so work on frames around Coneyhurst is planned for dry weather. Let us know about access to all the frames, upstairs ones included.
All of our work is guaranteed for twelve months, and the guarantee is the same wherever you are.
- Where
- Coneyhurst (RH14)
- Wider area
- West Sussex
- Guarantee
- A year, on every job
- Quote
- A clear price before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Also near Coneyhurst
More services for Coneyhurst
Landlord and commercial work in Coneyhurst
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance that we can handle for you.
Letting agents and landlords in Coneyhurst can book us as well as homeowners. Sealant work between tenants is a simple way to keep a property in good order.
Why it’s worth doing now in Coneyhurst
Running fresh sealant over the old joint is tempting, but it won’t grip old, dirty sealant. It peels before long, and water still gets in behind. The old mastic has to come out. Older cottages and farmhouses around Coneyhurst can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
Why us?
- Colour agreed with you before any work starts
- Any old sealant cut out fully, not covered over
- Approved under the ARBOMaster scheme
- We’re fully insured
Take a look at how sealant jobs are priced or what customers say.
Frames and glazing around Coneyhurst
With historic houses such as Old Place Manor (about 4.8 miles south-west) nearby, there’s older building stock in the area around Coneyhurst as well as newer homes. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window. The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Schools such as The Weald School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s. Old Place Manor, about 4.8 miles south-west, is one of the historic houses in the wider area around Coneyhurst.
Coneyhurst is about 6 miles south-west of Horsham, in West Sussex. Every kind of property in Coneyhurst is covered for window mastic. Every job comes with our one-year guarantee. 371 places in West Sussex are on our list. Our Crawley page covers work nearby, about 13 miles away.
Here we cover the RH14 postcode area for window mastic. We also cover Billingshurst (2 miles north-west), Five Oaks (3 miles north), Newpound Common (3 miles north-west), The Haven (4 miles north) and Slinfold (5 miles north). We also work in nearby towns such as Crawley (13 miles north-east), Horsham (6 miles north-east), Worthing (13 miles south), Haywards Heath (14 miles east), Burgess Hill (13 miles east) and Littlehampton (14 miles south).
Near you in Coneyhurst
For rail, the closest station is Billingshurst station, about 1.2 miles north-west. Well-known places in the area include Christs Hospital School Museum (3.9 miles north-east). Open spaces near Coneyhurst include Knepp Wildland.
When to call us in Coneyhurst
Plenty of failed mastic was poorly applied in the first place. Sealant run over dust, wet brick or loose mortar never bonded as it should, so it comes away long before its time.
Signs it’s time to call us include:
- Cracked internal joints between frame and plaster
- Cracked or shrunken mastic around the frame
- Untidy mastic left by window fitters
- Water coming in at the bottom corners of a door
Letting a property close to Billingshurst station? Then sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
What to look for in a quote
- Whether the sealant suits the joint
- What the quote includes, VAT included or not
- Are they insured?
- How hidden problems are handled
What affects the cost of window mastic
For a quick quote, just ask. The main things that affect it are:
- Whether the work is at height
- The number and length of the joints
- How much old sealant there is and how hard it is to remove
- The type of sealant required
Combining jobs into one visit is usually more efficient than separate visits. You’ll get one clear quote for the whole job.
What we need to know
There’s no need for technical detail. Just tell us:
- How we’d reach the joints
- A few pictures by email, if you can
- If it’s domestic, commercial or a hotel
- Where the job is, and your postcode
We don’t publish a price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To arrange one, call 0345 464 0079 or drop us an email.
Surface by surface
Aluminium frames
Aluminium needs a sealant that bonds to coated metal, and acetoxy silicones aren’t used, as they can attack some metals. Neutral-cure sealant is the safe choice.
Composite doors
A composite door generally sits in a plastic outer frame, so its perimeter joint is sealed much like a window. The bead is colour-matched to the frame.
Can I do it myself?
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 thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.
Common questions in Coneyhurst
Is Coneyhurst in your area for window mastic?
Yes. We work across London and the South East, and Coneyhurst is part of that. You can ring 0345 464 0079 or email us and tell us what needs doing.
Do you work for landlords with property near Billingshurst station?
Yes. We work for landlords and letting agents as well as householders. Just ring 0345 464 0079 or drop us an email with the address and what needs doing, and we will give you a clear price.
How long does it take to reseal the windows on a house?
Allow a morning for a couple of windows and a door. Access and the amount of old mastic make the biggest difference.
How much does window mastic cost in Coneyhurst?
There’s no set price, as it depends on the job: how much there is, what’s there now, how we reach it and what it needs. We agree the price before any work begins.
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.
Do you do commercial work?
Yes. Hotels, offices and other businesses use us.
Is there any odour?
Some sealants have a smell while they cure, but it fades. Opening a window helps.
Where is Mr Mastic based?
We’re based in Crawley, West Sussex, and we cover South East England, London and all of Scotland.