
West Grinstead mastic sealing
We carry out mastic sealing for building owners, managing agents and housing associations in West Grinstead and the surrounding area. Send photographs or drawings for a fixed quote.
- Water getting in round frames after rain
- Cracked, hardened mastic round windows on a block
- Damaged joints in communal entrances and corridors
Mastic sealing in West Grinstead
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
When to call us in West Grinstead
Frames, panels and masonry expand and contract through the year, and the sealant takes up that movement. A joint that was too narrow, too thin or the wrong product can’t cope long before it should.
Clients typically get in touch after noticing one or more of the following:
- Leaks at window and door perimeters
- Mastic failing across several blocks on an estate
- Window mastic that has split and shrunk
- Draughts at frames across a block
Older community buildings, Shrine Church of Our Lady of Consolation and St Francis among them, often have frames of mixed ages whose mastic varies.
What your quote should include
- How joint depth will be controlled
- How they handle RAMS and site documents
- Whether primer will be used where the manufacturer specifies it
- Their pre-qualification and accreditations
Mastic sealing for commercial buildings in West Grinstead
Different joints need different sealants. Window perimeters and external joints often take a low-modulus neutral-cure silicone, and MS polymer sealants stick well to many substrates and often take paint. We will confirm the colours available for the specified product. We work on window and door perimeters on blocks, shopfronts below residential blocks and external wall and movement joints, and the failures we’re asked to look at most are communal area joints that look neglected and the same joint failures repeated across a portfolio. Whoever orders the work in West Grinstead, the brief is usually the same: a fixed quote, no surprises on site and a 12-month guarantee behind the result.
For owners with a single building near West Grinstead, we plan to finish in one visit where possible. Photos of each elevation help us quote accurately.
Our workmanship is guaranteed for 12 months, in West Grinstead as everywhere else we work. If our installation lets you down in that time, we return and fix it.
- Where
- West Grinstead (RH13)
- Region
- West Sussex
- Cover
- A 12-month guarantee
- Quotes
- A fixed quote before we start
- Call
- 01277 525 020
- Updated
- 3 November 2026

When something else is needed
We check first that sealant really is the fix. It won’t put right:
- Roof leaks, gutters or failed flashings that aren’t sealant joints
- Leaks through the frame itself rather than the perimeter
- Substrate edges that need repairing first
If you are not sure, just ring 01277 525 020 or use the quote form and we’ll give you a straight answer.
Where we work in West Grinstead
- Communal entrances and stairwells
- Window and door perimeters on blocks
- Shopfronts below residential blocks
- Communal kitchens and washrooms
- External wall and movement joints
- Balcony and threshold joints
How the job changes by surface
Commercial and mixed-use buildings
Mixed-use buildings combine shops below with flats or offices above, so phasing has to suit both. Tell us your site hours and access windows and we will plan around them.
Estate-wide resealing programmes
Consistent products and colours across an estate make future maintenance simpler and easier to manage.
How a job runs
On arrival, we report to your site contact and complete whatever induction the building runs. Everything around the joints gets protected before any cutting starts, and the work typically takes anything from a day to a few weeks, depending on the number of buildings and joints. Jobs in and around smaller places like West Grinstead are usually planned as a single visit, so photographs and measurements up front really help. Then the right materials arrive with us.
- First we look at the mastic on each building and note what needs replacing.
- We send a fixed quote that sets out the joints, the products and the programme.
- The sequence and the dates are fixed with you, giving you what you need to notify occupiers.
- We remove the old mastic completely and clean the joint faces back.
- Backing rod and primer go in as the joint requires, then the new bead is placed and tooled.
- Each building is checked on completion and the work carries our 12-month guarantee.
What we need from you
- Share the asbestos register for older buildings
- Arrange parking or a loading space
- Clear stock, furniture or equipment away from the joints
Request a quote
Pricing a project or setting a maintenance budget? We’ll quote against your scope and drawings that you can work with. For a chat about it beforehand, give us a call on 01277 525 020 or send details through our quote form.
Advice
Places near West Grinstead
Also in West Grinstead
When to bring in a specialist
Redoing a failed joint typically costs more than getting it right at the outset, since all of it has to come out and the faces be cleaned back again. For that reason, many FMs and contractors use a sealant specialist from the outset.
The visible bead is only part of the job. Backing rod, primer where specified and a joint designed to move with the building are easy to get wrong without experience.
Owners, agents and contractors
When you manage a building on behalf of an owner, you need clear quotes and clear reporting. You get a fixed quote, an agreed scope and a walk round at the end, plus a 12-month guarantee.
We work for building owners and managing agents on everything from one building to a spread of sites around West Grinstead. Several sites can go on one quote, which keeps the paperwork simple.
For owners and agents in West Grinstead
West Grinstead lies roughly 37 miles out from central London. Around the capital’s commuter belt, managing agents look after many blocks close to stations and town centres. The South East is one of the drier parts of the UK. Outside work still depends on dry joints, and south- and west-facing elevations, which take the most sun and rain, often age first.
Property owners at sites such as Pondtail Farm (Business Park) (to the north-west of West Grinstead) can have mastic renewed between lettings.
West Grinstead is about 6 miles south of Horsham, in West Sussex. Across the RH13 postcode area, it works the same way: details in, fixed quote out, then sealing and a 12-month guarantee. 373 places across West Sussex fall within our area, including West Grinstead. Our Brighton page has more on work in that area (13 miles or so).
Postcode districts covered here: RH13. Streets here include Steyning Road, Carylls Meadow and Clothalls Lane. If your building is just outside West Grinstead, we cover Littleworth (1 mile south-east), Partridge Green (1 mile south-east), Dial Post (2 miles south-west), Shipley (2 miles west) and Whitehall (2 miles west). Further afield, our area takes in Crawley (11 miles north-east), Horsham (6 miles north), Worthing (11 miles south), Haywards Heath (10 miles east), Burgess Hill (9 miles east) and Littlehampton (15 miles south-west).
What’s near West Grinstead
Not far away are Knepp Wildland.
FAQs: West Grinstead
Do you take on block-wide or estate-wide mastic work in West Grinstead?
Yes. Planned programmes across a building, block or estate are a core part of this service. We can phase the programme to suit your budgets and notice periods.
Can you work at a site such as Pondtail Farm (Business Park), by West Grinstead?
Yes, sites like Pondtail Farm (Business Park) are within our area, along with the rest of West Grinstead. Photos and a short description are enough for a first look.
Do you seal on top of existing sealant?
No. Sealing over old material is one of the classic causes of early joint failure, so everything comes out first.
Can you follow the specification on our project?
Yes. Send it with your enquiry, and we’ll price the work to it.
Can weather delay the job?
For external joints, yes. The joint has to be dry and within the product’s temperature range, so damp, frosty or very cold days can stop external work. Internal work is rarely affected.
Is mastic sealing guaranteed?
A 12-month guarantee covers our work. It covers our workmanship, not later building movement, damage or frame failures.
Do you work in West Grinstead?
Yes. West Grinstead is in our area and the rest of West Sussex. For a quote, speak to us on 01277 525 020 or send photos by email.