West Sussex · England
Window & door mastic in Loxwood, West Sussex
We cover Loxwood for mastic around window and door frames, sills and patio doors. Old material cut out, joints cleaned and sealed neatly.
- Draughty joints inside around the window
- A bead that doesn’t match the frame
- Cracked or shrunken mastic around the frame
How it works
When we arrive, we look over the joints with you first. We protect the surfaces around the joints before any work begins. Most jobs take a few hours for a handful of frames, longer for a whole house. Somewhere as small as Loxwood, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- Each frame is looked over and we agree which ones need resealing.
- The old mastic is cut out and scraped back to clean surfaces.
- Deep gaps get closed-cell backing rod to set the depth.
- The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
- Every joint is tooled smooth and checked before we leave.
Getting ready for the visit
- Let us know about earlier repairs to the joints
- Clear items away from the joints we are working on
- Try not to wet indoor joints just before the visit
How to get a quote
If you are in Loxwood and need window mastic, phone 0345 464 0079 or email us. A short description of the job and where it is helps us quote, and you’ll get a clear quote before we start.
Related advice
Window mastic in Loxwood, done properly
Around Loxwood we seal all kinds of frames: from uPVC casements to timber and aluminium, plus patio doors, French doors and sills. Each gets a sealant chosen for the frame and the wall it meets. We work on uPVC windows, window sills and composite doors, and common reasons people get in touch are a bead that doesn’t match the frame and water coming in at the bottom corners of a door.
Outdoor sealant needs dry, clean surfaces, so work on frames around Loxwood is planned for dry weather. Tell us about access to every side of the house, including upper-floor windows.
Big or small, you get the same one-year guarantee.
- Location
- Loxwood (RH14)
- Wider area
- West Sussex
- Cover
- 12 months on all our work
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Questions from Loxwood
Is window mastic in Loxwood guaranteed?
Every job comes with our one-year guarantee, wherever it is. We’re also fully insured and ARBOMaster approved.
Is Loxwood within the area you cover?
Yes, we do. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Where is Mr Mastic based?
Our base is in Crawley, and we work across South East England, London and Scotland.
Do the sealants smell?
That depends on the sealant. Some products have a noticeable smell, others very little, and any smell fades as they cure.
What should I tell you?
Tell us what needs doing and where, plus photos if you have them. We will ask anything else we need to know.
How many windows can you do in a day?
The work takes anything from an hour or two to a full day, depending on how many frames there are. Access and how stubborn the old mastic is affect the time most.
Can landlords and businesses book you?
Yes. As well as homeowners, we work for landlords, agents, businesses and hotels across West Sussex.
Do you hold any approvals?
Yes. We are an ARBOMaster approved applicator, the approved applicator scheme for Arbo sealants.
Why deal with it now?
If you’re painting or rendering, reseal at the same time. Fresh joints finish the job neatly. Where a wall is exposed, as many are in small places like Loxwood, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs. Ask us for a quote and we’ll go through it with you.
What you get with us
- Anti-fungal sanitary silicone in wet areas
- Colour agreed with you before work begins
- Arbo and Everbuild products
- White, clear, grey or another colour, product permitting
Take a look at how sealant jobs are priced and customer reviews.
Different surfaces, different methods
Patio & French doors
Not every patio door leak is a mastic problem: blocked drain slots, worn brush seals and threshold details can let water in too. We check before we reseal.
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.
What we are called out for in Loxwood
Some failures date back to when the windows were fitted. Sealant run over dust, wet brick or loose mortar didn’t grip properly, so it comes away long before its time.
It’s worth asking for a quote if you see:
- Cracked sealant at the sill ends
- White mastic on grey or black frames
- Hard, cracked sealant around windows
- Damp patches on the reveal after heavy rain
Managing a site like Loxwood Primary School? Then its window and door frames need their mastic kept sound, just like a home’s.
Questions to ask before you book
- Which sealant they’ll use, and why
- What happens if the job turns out different
- What the cure time is
- What the quote includes, VAT included or not
Keeping the joints in good condition
Good habits help new joints last longer. Our tips:
- Use gentle cleaners on frames and sealant
- Wipe condensation off the frames
- Avoid harsh chemicals near the mastic
- Don’t paint over the silicone
Timber frames need their paint kept up, because bare, wet timber moves more and pulls at the joint. Keep paint off the silicone itself.
Wet, windy weather is when failed mastic shows itself, but sealant goes on best when frames and walls are dry. Dealing with it when you first notice a crack avoids chasing leaks through the wet months.
Window mastic in Loxwood: local notes
London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
For an older house near a landmark such as St John the Baptist, the joint between an old wall and a newer frame is normally the first place rain gets in.
Loxwood is about 9 miles west of Horsham, in West Sussex. Anywhere in RH14, our applicators can take on window mastic. Our West Sussex coverage runs to 371 places, and Loxwood is one of them. There’s also a page for Crawley, about 14 miles away.
Every address in RH14 is within our area for window mastic. Whether your property is on High Street, Pond Close and Oak Grove or anywhere close by, we can help. Neighbouring places we cover for window mastic include Ifold (1 mile south-west), Alfold Bars (1 mile north), Alfold (1 mile north), Plaistow (2 miles west) and Durfold Wood (3 miles west). We also work in nearby towns such as Crawley (14 miles east), Horsham (9 miles east), Broadfield (14 miles east), Storrington (11 miles south), Billingshurst (5 miles south-east) and Bewbush (13 miles east).
Local landmarks in Loxwood
The countryside around Loxwood includes Shillinglee Lake.
Quotes for window mastic in Loxwood
We do not publish a price list. What we look at:
- How easy the joints are to reach
- Any working-time requirements on site
- The size of the job
- The product the joint needs
The cost depends on the size of the job, how much old material has to come out and how easy the joints are to reach. We give a clear quote before work begins.
What we need to know
There’s no need for technical detail. It helps if you can tell us:
- Any access issues, like height or stairs
- Where the property is
- Photos by email, if that’s easy
- What’s wrong with the joints now
For a quote, ring 0345 464 0079 or drop us an email with the location and a short description of the problem. You’ll have a clear quote before work begins.
Landlords, agents and businesses in Loxwood
From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
For anyone letting property in or around Loxwood, several properties can be quoted together. Just tell us the addresses and what each one needs, and pictures by email help.