
Construction and new-build mastic in Colgate, West Sussex
Mastic packages for new-build and refurbishment projects in Colgate. CHAS accredited and fully insured, with a 12-month guarantee.
- Early adhesion failures on new external joints
- Perimeter gaps outside the sealant’s range
- A long mastic snag list close to completion
Construction mastic in Colgate
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Different surfaces, different methods
External facade and movement joints
Movement joints in the facade are sealed with a product suited to the expected movement. Depth is controlled with backing rod so the bead bonds to two sides only.
Bathrooms, en suites and washrooms
On multi-unit schemes, consistency matters across hundreds of bathrooms. A single team keeps the standard consistent, plot by plot or floor by floor.
Construction mastic in Colgate, done properly
Refurbishment work needs a slightly different approach from new build. Existing joints have to be stripped back to sound faces, because fresh sealant can’t key into cured silicone, and on older buildings we ask for the asbestos survey before disturbing anything. New and existing joints then get the same preparation. The enquiries we see most involve frame perimeters left unsealed or poorly sealed and a long mastic snag list close to completion, across sanitary and kitchen joints, internal decorators’ caulk and floor and skirting junctions. A single leaking joint is often how a building in Colgate first comes to us: we look at the rest while we’re there and tell you what we find.
Conversions of older rural buildings near smaller places such as Colgate bring stone, flint, brick and timber up against new glazing. A product that grips an irregular face, with a colour that suits the building’s character, is normally what’s needed.
Whoever the client is, the cover is the same: twelve months on the work we carried out. It doesn’t extend to damage, faults in the building or work by others, and we’re upfront about that.

- Location
- Colgate (RH13, RH12)
- Wider area
- West Sussex
- Cover
- 12 months on our workmanship
- Price
- A fixed quote before we start
- Call
- 01277 525 020
- Page updated
- 3 November 2026
Construction mastic around Colgate: what changes locally
The South East is one of the drier parts of the UK. Winter mornings still bring frost and condensation on frames and panels, so we time external mastic for dry faces and agree it with the site team. At about 30 miles from central London, Colgate is within reach of the capital. Construction around the commuter belt mixes station-side flats with refurbished offices and units, and each scheme needs its mastic sealed to programme.
Units on estates such as Holmbush Potteries Industrial Estate, 1 mile to the north of Colgate, tend to be reclad and refitted as tenants change, and each job leaves cladding and perimeter joints to seal. School extensions, at buildings such as Colgate Primary School, typically run to the summer holidays, mastic included.
Colgate is about 3 miles south-west of Crawley, in West Sussex. Across the RH13 postcode area, the process is the same: send details, get a fixed quote, we seal, and the work is guaranteed. Our West Sussex coverage takes in 373 places. For work in that direction, see our Brighton page.
If you need construction mastic in RH13 and RH12, the process matches everywhere else we work: details, then a fixed price, then sealing and a 12-month guarantee. If your site is on Forest Road, Vicarage Close and Blackhouse Road or close by, we can quote for mastic packages. Nearby places we also cover include Kilnwood Vale (1 mile north), Faygate (1 mile north-west), Broadfield (2 miles north-east), Roffey (2 miles west) and Handcross (3 miles south-east). Bigger towns within reach include Crawley (3 miles north-east), Horsham (4 miles west), Haywards Heath (9 miles south-east), Burgess Hill (10 miles south-east), East Grinstead (11 miles east) and Storrington (14 miles south-west).
Local landmarks in Colgate
In Colgate, that means premises near The Dragon pub, Target Hill Park and Cottesmore School, among other places. Colgate’s nearest station is Faygate station, about 1.3 miles north-west. Well-known places in the area include Crawley Museum (3.4 miles north-east) and County Mall (3.4 miles north-east). Open spaces near Colgate include Tilgate Lake and Warnham LNR.
What we can’t put right
We seal joints; we don’t mend everything behind them. Sealant alone won’t deal with:
- Joints damaged after sign-off by following trades
- Deciding which fire-stopping product a penetration needs
- Designing joint widths or choosing the specification (that sits with the designer)
Not sure which it is? You can ring 01277 525 020 or email a schedule or drawings and we will tell you honestly.
Surfaces we seal
- Floor and skirting junctions
- Brick and block movement joints
- Sanitary and kitchen joints
- Internal decorators’ caulk
- Window and door perimeters
- Cladding and panel joints
What sets the cost
We price every job individually. The main factors are:
- Working within restricted access windows
- Site requirements such as inductions and permits
- Backing rod, priming and other preparation
- Travel to remote or island sites
Larger quantities, tricky access or phasing all shape the price. Site requirements like inductions and permits play a part as well.
Details that help us quote
We can often quote from photographs and a few details. Please tell us:
- Asbestos survey details if the building is older
- Whether the building will be occupied during the work
- Specification clauses that apply
- When you need the work done
If there’s a specification, drawings or a tender package, send it with your enquiry, and we will price against exactly what is specified. For smaller jobs, photographs and a description will do.
On site: what to expect
A typical day starts with protection: tape along each joint edge and covers over finishes, stock and equipment close by. On site, the work typically takes a few days on a modest refurbishment and longer on multi-plot or multi-storey schemes, and we clear our waste as we work. Rural sites near Colgate may need directions, gate codes or a contact on site. Add it to your enquiry and we’ll build it into the plan.
- We price from the drawings, specification and programme you send.
- We return a fixed quote that ties the mastic package to your programme.
- Any site paperwork you need (RAMS, insurance certificate, CSCS details) is confirmed with the quote.
- Work follows the programme, area by area, as rooms and elevations become ready.
- Joints are cleaned, primed where the maker requires it, backed and sealed to the specification.
- Before handover, snags are dealt with and the package is signed off under our 12-month guarantee.
Before we start on site
- Move anything stored against the joints
- Arrange parking or a loading space
- Send any specification or drawings in advance
Get a fixed quote
A good quote starts with a clear picture: the joints involved, quantities, access and the product called for. Send what you have, and we’ll arrange a site visit if anything is unclear.
Related advice
Also near Colgate
More services for Colgate
Your questions answered
Can you work at a site such as Holmbush Potteries Industrial Estate, by Colgate?
Yes. We cover Colgate and the area around it, including industrial estates, business parks and retail parks such as Holmbush Potteries Industrial Estate. A few photos and the unit address let us price the work.
Would you work within a site like Crawley Hospital?
Yes. We work in healthcare settings as well as offices and schools. We follow the site’s permits, sign-in and infection-control procedures in every area.
How long before the joints can be used?
Curing time varies by product, and we confirm it on the day, and sign any area that should be left alone.
Do you work to architects’ specifications?
Yes. We follow the specification, along with the manufacturer’s installation guidance, and we raise anything unclear before work begins.
Do you have public liability insurance?
Yes. We are fully insured, and the certificate can go with your quote.
Do you work in Colgate?
Yes. We take on work across Colgate.
Will you come and look before quoting?
It depends on the job. Simple work can often be priced from photographs, while larger or less clear jobs get a site visit first.
Doing it in-house
Redoing a failed joint usually 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.
Paperwork matters too. Many sites expect CSCS cards, RAMS and proof of insurance, and our CSCS-carded applicators are used to working under those rules.
When to call us in Colgate
Value-engineered products sometimes end up in the wrong joints. A general-purpose silicone on a facade or a caulk in a wet area won’t perform like the specified product. We stick to the specified product, or put any alternative to you first.
Clients typically get in touch after noticing one or more of the following:
- Snag items on joints that need redoing before handover
- Existing joints on a refurb that need cutting out and resealing
- New external sealant already peeling away
- Sanitary sealant damaged by following trades
With historic properties like Tyes Place, 4.5 miles south-east of Colgate, in the area, refurbishment work often meets old masonry that needs compatible sealants.
What your quote should include
- Whether their applicators hold CSCS cards
- How they handle RAMS and site documents
- Their public liability cover
- Is depth set with backing rod, or bond-breaker tape in shallow joints?