West Sussex · England
Sand mastic for sash & case windows in Nuthurst, West Sussex
Our applicators work in Nuthurst on traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old material cut out, joints cleaned and sealed neatly and every job guaranteed for a year.
- Patchy fillers round a sash window
- Gaps where the frame meets the masonry
- Crumbling sand mastic round a window
Sand mastic in Nuthurst
Sand mastic doesn’t last for ever, leaving gaps round the window. We rake it out and renew it and tidies the surround. If you have mastic round period door frames that has failed and mastic worn away on windows facing the weather, we can put it right.
Homes in small places like Nuthurst often stand in the open, with little to shelter their windows from wind and rain. That exposure dries out and cracks the mastic around frames and sills faster.
All our work is covered by a one-year guarantee.
- Location
- Nuthurst (RH13)
- Region
- West Sussex
- Cover
- One year on every job
- Price
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Sand mastic in Nuthurst: local notes
Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Rented homes near Horsham station change hands often, and any sash windows need sound mastic to keep draughts and rain out. In the older streets around The Parish Church of St Andrew, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Nuthurst is about 3 miles south of Horsham, in West Sussex. Wherever you are in the RH13 postcode area, we cover sand mastic for homes and businesses. 371 places in West Sussex are on our list. There’s also a page for Crawley, about 8 miles away.
All of RH13 is covered for sand mastic. Neighbouring places we cover for sand mastic include Maplehurst (1 mile south), Southwater (2 miles west), Tower Hill (3 miles north-west), Horsham (3 miles north) and Brooks Green (4 miles west). We also work in nearby towns such as Crawley (8 miles north-east), Worthing (14 miles south), Haywards Heath (9 miles east), Burgess Hill (9 miles south-east), East Grinstead (15 miles north-east) and Shoreham-by-Sea (13 miles south).
Local landmarks in Nuthurst
Locally, jobs take us to homes and businesses close to Leonardslee and the streets around them. The closest station to Nuthurst is Horsham station, about 3.1 miles north. A little further out are Christs Hospital School Museum (3.1 miles north-west) and Horsham Hospital (3.4 miles north). The countryside around Nuthurst includes Knepp Wildland.
Also near Nuthurst
Also in Nuthurst
Different surfaces, different methods
Timber door frames
A neat sand mastic joint round a front door suits a period home.
Brick reveals
An open joint at a brick reveal lets weather in. New mastic seals the gap.
Aftercare tips
Good habits help new joints last longer. A few tips:
- Get any rot dealt with first
- Ask the planning authority about consent for listed or conservation-area homes
- Renew mastic before redecorating the windows
- Check the mastic when you check the paintwork
Check the mastic when you check the paintwork. Catching cracks early keeps repairs small.
Crumbling mastic lets rain into the joint. That water can reach the timber frame and the wall, so renewing it early is worth it.
Work for landlords, hotels and businesses
Letting agents and landlords in Nuthurst can book us as well as homeowners. Resealing between tenancies keeps a property looking cared for.
From a single let to a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a one-year guarantee.
How it works
We bring everything the job needs with us, so there’s nothing for you to buy. Once we’ve agreed what’s being done, we protect the area and start. Most jobs take a few hours per window, depending on the condition of the joints. For a village or hamlet like Nuthurst, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- We look at the surrounds with you and agree the joints to renew.
- Old mastic and any loose material are raked out.
- We pack any deep voids first.
- The sand mastic is mixed and pressed into the joint by hand.
- We dress the finish so it sits neatly against the masonry.
Before we arrive
- Tell us if parking is tricky
- Mention if the joints have been sealed before
- 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, and we will explain how we’d tackle it. Whenever you’re ready, call 0345 464 0079 or email us.
Related advice
Do you need sand mastic in Nuthurst?
Timber swells and shrinks with the weather. That movement opens up the mastic joint over time.
Look out for these signs:
- Draughty sash windows at the surround
- Weathered mastic on the most exposed windows
- Crumbling sand mastic round a window
- Silicone on a period window that looks wrong
For site and facilities teams at buildings such as St Andrew's CofE Primary School, its window and door frames need their mastic kept sound, just like a home’s.
What to look for in a quote
- Whether the sealant suits the joint
- What happens if they find a problem under the old sealant
- What the quote includes, VAT included or not
- Is the old sealant removed completely?
When it is not the sealant
Honest advice matters more to us than a booking, so here’s what sealant cannot fix:
- Whether work needs listed building consent
- Sash cords, weights and draught-proofing of the sashes
- Timber that has rotted
Not sure which it is? You can call 0345 464 0079 or email us and we will tell you honestly.
Surfaces we seal
- Period & listed homes
- Stone surrounds
- Sash and case windows
- Tenement windows
- Brick reveals
- Timber door frames
Leave it or put it right?
New sash windows are a major, costly change, and in listed buildings it may need consent. If the frames are sound, renewing the mastic deals with gaps and draughts at the surround. Around Nuthurst, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Doing several joints on one visit usually makes better use of the time than several visits, so tell us about everything that needs sealing. You’ll get one clear quote for the whole job.
Why book with us
- Experience in homes, commercial sites and hotels
- Every job guaranteed for a year
- 180+ five-star Google reviews
- Over 20 years’ experience
See our cost guide and our reviews.
Your questions about sand mastic in Nuthurst
Do you cover smaller places like Nuthurst?
Yes. Nuthurst is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Do you cover Nuthurst for sand mastic?
Yes, Nuthurst is within the area we cover. We work across London and the South East. You can phone 0345 464 0079 or drop us an email and tell us what needs doing, and we’ll give you a clear price.
How long does sand mastic take?
Most jobs take a few hours per window, depending on the condition of the joints, including preparation and clearing up. Your quote will say how long we expect yours to take.
Are you an approved applicator?
Yes. Mr Mastic is an ARBOMaster approved applicator, and we’re fully insured.
What information do you need?
Tell us what needs doing and where. We’ll ask anything else we need to know.
Do you remove the old sealant?
Yes. Sealing over old sealant is the main reason resealing fails early, and it’s something we never do.
Will there be a smell?
It depends on the product. Some smell for a while, some hardly at all.
What guarantee comes with the work?
Every job comes with our 12-month guarantee.