
Mastic contractors in Selham
We carry out mastic packages for new-build and refurbishment projects in Selham. Send details for a fixed quote.
- Missed perimeter joints on a new elevation
- Perimeter gaps outside the sealant’s range
- Sanitary sealant damaged by following trades
Construction mastic near Selham
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
About our construction mastic in Selham
Site managers want applicators who turn up with the right cards and paperwork. Our applicators are CSCS-carded, and we are CHAS accredited and a Constructionline member, with public liability insurance in place. RAMS, an insurance certificate and CSCS details can be confirmed with the quote if you tell us what you need. If you’re dealing with frame gaps too wide for sealant alone and different trades sealing to different standards, we can put it right, whatever the surface. One point of contact handles commercial sealant work in Selham from the first photos to the final walk-round, for single jobs and planned programmes alike.
Around smaller places like Selham, building work usually means conversions of farm buildings, a few new houses or an extension to a hall or school. Perimeters, facade joints and internal sealant all need doing properly, however small the scheme.
We stand by our work: 12 months, guaranteed. That covers our preparation and application, and we come back if anything isn’t right.
- Location
- Selham (GU28)
- Region
- West Sussex
- Guarantee
- 12 months on every job
- Price
- A fixed quote before we start
- Call
- 01277 525 020
- Last updated
- 3 November 2026

Do you need construction mastic in Selham?
On construction sites, joints typically fail early because of when they were sealed, not what was used. If sealant goes in before the last trades are through, it gets knocked, painted over or contaminated, so they end up back on the snag list.
Typical triggers for a call:
- Missed perimeter joints on a new elevation
- Early adhesion failures on new external joints
- Oversized or tapered gaps around new frames
- Snag items on joints that need redoing before handover
On a healthcare site such as Midhurst Community Hospital, which lies west of Selham, new blocks and refurbishments go on while the hospital keeps running, so mastic work is sequenced carefully.
What to look for in a quote
- What the guarantee covers, and for how long
- What site paperwork they can supply
- Health and safety accreditation such as CHAS
- Which product they’ll use, and why it suits the joint
Towns and villages near Selham
More services for Selham
Common questions from Selham clients
Does your area include sites such as Hampers Common Industrial Estate, near Selham?
Yes. Estates, retail parks and business parks around Selham, Hampers Common Industrial Estate among them, are all within reach. Send details of the unit and the work through our quote form for a quick quote.
Is Selham off your patch?
Not at all: smaller places are covered as well as towns. We work across Greater London and the South East. Good photographs up front let us bring everything on the first visit.
Can you send site paperwork?
Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we’ll confirm with the quote.
Do you take on multi-site work?
Yes. We take on portfolio and planned maintenance work, planned site by site to suit how each building is used.
Can you follow the specification on our project?
Yes. We follow the specification, along with the manufacturer’s installation guidance, and any queries are raised before we start.
Is the mastic package guaranteed?
It carries a 12-month guarantee on our workmanship. We carry five million pounds of public liability insurance.
Can you work while the building is occupied?
Normally, yes. We phase the work so most of the building stays in use, with each area protected and signed.
Building owners, agents and FMs in Selham
Blocks and communal areas make up much of the work for housing associations and agents. Work can be phased so residents and staff keep access throughout, and each stage is agreed with your contact.
FMs need a contractor who is easy to get on site. Tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we will confirm with the quote.
What we can’t put right
We check first that sealant really is the fix. It isn’t the answer for:
- Faulty frames rather than failed sealant
- Rework caused by others damaging completed areas
- Designing joint widths or choosing the specification (that sits with the designer)
If you are not sure, just call the office on 01277 525 020 or email the details over and we will give you a straight answer before you book.
Joints and surfaces we work on
- Window and door perimeters
- Internal decorators’ caulk
- Cladding and panel joints
- Floor and skirting junctions
- Brick and block movement joints
- Sanitary and kitchen joints
Maintenance after handover
After handover, these steps help:
- Check frame gaps are within the sealant’s range before sealing
- Record the products used in the O&M file
- Share drawings and the specification as soon as possible
- Release areas for mastic once other trades have finished in them
Any damage after we’ve finished should go on the snag list straight away. Snags can be picked up in a planned close-out visit.
One unsealed frame can let water into finished internal areas. On a new building that means remedial work after decorating, and a delay to handover. A check of every frame before decorators start is worth the time.
Our process
Inspect, seal, sign off: every visit follows that pattern. We inspect the joints and confirm what’s in scope, then the work is carried out to the specified product and detail, and we finish with a walk round so the work can be signed off. For work around Selham, we aim to finish in one visit, so photos and measurements up front really help. That way the right products come on the day.
- We start with the drawings, specification and programme.
- Quantities are measured and a fixed price returned.
- We agree with the site team which areas come first.
- Each area is sealed when it’s released.
- Joints are prepared, backed and sealed to the specification.
- After snagging, the work is handed over under our 12-month guarantee.
What we need from you
- Let building users know which areas are affected
- Tell us your opening times and when work is allowed
- Make sure the joints can be reached
Ask for a quote
Quotes are fixed against the scope you send, so the cost is agreed before work starts. To ask for one, speak to us on 01277 525 020 or email drawings and photos.
Advice
Construction mastic in Selham: the local picture
Central London is about 44 miles from Selham. Building activity in the commuter belt runs from new flats near stations to business park refurbishments, and main contractors there need mastic that keeps to the programme. Rainfall across the South East, Selham included, is lower than in many parts of the UK. That doesn’t stop wet spells, or frosty starts that leave panels too damp to seal, which is why external dates are agreed with the site manager.
Older buildings in the area around Selham, such as Cowdray House, 2.7 miles to the west of Selham, need care when sealed: the product has to suit soft or historic materials. When units on a site such as Hampers Common Industrial Estate, 3 miles to the east of Selham, are refurbished or reclad, the panel joints and window perimeters are part of the mastic package.
Selham is about 8 miles south of Haslemere, in West Sussex. If you are looking for construction mastic in Selham, we can help. Across West Sussex, 373 places are covered, Selham among them. There’s a separate page for Portsmouth, about 21 miles away.
Work on mastic packages is covered throughout GU28, whatever the building. Close to Selham, our area also takes in South Ambersham (1 mile west), River (2 miles north), Tillington (2 miles north-east), Upperton (2 miles north-east) and Rotherbridge (2 miles east). Nearby towns on our patch include Bognor Regis (13 miles south), Chichester (11 miles south-west), Littlehampton (13 miles south-east), Rustington (14 miles south-east), Storrington (11 miles east) and Billingshurst (10 miles east).
Local landmarks in Selham
Nearby you’ll also find Midhurst Community Hospital (2.9 miles west) and Coultershaw Heritage Site (2.5 miles east). Open spaces near Selham include Graffham Common.
What the job involves on each surface
Internal decorators’ caulk
Acrylic caulk fills internal gaps around trims, boards and frames ahead of decorating. It’s paintable and suits gaps that don’t move while moving joints need a flexible sealant.
Bathrooms, en suites and washrooms
Sanitary joints around baths, showers, basins and WCs need anti-mould sanitary silicone. Each joint is prepared, sealed and finished with a neat tooled line and baths are loaded where appropriate before sealing.