Construction Mastic in Selhurst
Looking for construction mastic in Selhurst? Send us the details for a fixed quote, backed by a 12-month guarantee on the work.
- Internal caulk splitting as the building dries out
- Bath and shower joints scraped during the final clean
- Frame gaps too wide for sealant alone
Construction mastic across Selhurst
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Construction mastic in Selhurst
The specification and the programme set the job. If a product is named, that’s what goes in; any alternative we suggest is put to you before anything changes. Backing, primer and depth follow what the sealant maker sets out, so the joints perform as the designer intended. If you have sanitary sealant damaged by following trades and mastic snags holding up handover, we can put it right. For commercial sealant work in Selhurst, you deal with one contact from quote to sign-off, whether it’s one building or several.
Construction in a London area such as Selhurst means working on constrained sites: small compounds, delivery slots and shared hoists and scaffold. Mastic is typically one of the last trades on each elevation or floor, so we keep to the programme and the order of trades the site sets.
Whoever the client is, the cover is the same: a 12-month guarantee on our workmanship. Faults in the structure, damage and other trades’ work fall outside it, and we say so plainly.
- Place
- Selhurst (SE25, SE20, CR0)
- Wider area
- Greater London
- Guarantee
- 12 months on our workmanship
- Price
- Quoted before any work starts
- Telephone
- 01277 525 020
- Last updated
- 3 November 2026
Selhurst: questions and answers
Do you take on work at healthcare sites like Shirley Oaks Hospital?
Yes, hospitals are one of the sectors we cover. The estates team’s permit system and infection-control rules come first, and the work is planned around them.
Can you work in a London building with booked loading and goods-lift slots?
Yes, most London buildings have access rules of some kind, and we plan around them. Send the building rules and access times with your enquiry. The ULEZ covers the whole of Greater London, which we allow for
Do you work in Selhurst?
Yes. Selhurst falls within our area, and the simplest way to start is to ring 01277 525 020 or send photos by email.
How soon can the area be used again?
That comes down to the sealant and the temperature. Some products skin over quickly but need longer to cure fully, so we will confirm the curing time on the day.
What accreditations do you hold?
We are CHAS accredited and a Constructionline member, with CSCS-carded applicators. We’re also fully insured, with five million pounds of public liability cover.
What will the job cost?
That depends on the job: quantities, access, the product and any phasing. Call for a quote.
When is resealing likely to be due?
Nobody can honestly give a figure in years, because life depends on how much the joint moves, how exposed it is and how it’s cleaned and used. Regular inspection is the best way to catch problems early.
What we’re called out for in Selhurst
A joint without backing rod or bond-breaker often fails early. Bonded to the base of the joint and both sides, sealant can’t stretch evenly so we set the depth properly before sealing.
Clients usually get in touch after noticing something like this:
- Missed perimeter joints on a new elevation
- Caulk cracking where joints are moving more than expected
- A long mastic snag list close to completion
- Sanitary sealant damaged by following trades
For contractors at a college like Spurgeon's College, which lies north-west of Selhurst, perimeters and internal sealant are timed for the holidays.
What your quote should include
- Do they follow the manufacturer’s priming guidance?
- Is the sealant right for the movement and the substrate?
- Will CSCS-carded applicators be on site?
- How the existing material will be dealt with
Our process
Working in a building that stays open takes some planning. The work area is signed and kept contained, keep walkways clear and work section by section so the rest of the building stays in use. Most London premises stay occupied while we are on site, so we agree zones and timings with the building or facilities manager. Areas are handed back as each section is finished.
- Drawings, the sealant specification and your programme come to us for pricing.
- We return a fixed quote that ties the mastic package to your programme.
- You tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we confirm it with the quote.
- Areas are sealed plot by plot or floor by floor as the trades hand them over.
- Every joint is prepared, set to depth and sealed with the specified product.
- Snags are cleared before handover and completed areas carry our 12-month guarantee.
What we need from you
- Send your site hours and access windows
- Warn occupants and staff about the work
- Move anything stored against the joints
Quotes
Every quote starts with the facts: what’s there, how much of it, how we reach it and what’s specified. Share whatever details you have and we’ll fill any gaps with a visit.
Advice
Why deal with it now?
A quick bead over a damaged joint can get an area past inspection, but it rarely lasts. New sealant laid on old or dirty sealant has nothing to bond to and the defect reappears in the defects period. We cut out and redo the joint properly. In Selhurst, each extra visit means more notices, permits and disruption, so cutting the old sealant out fully and doing it right once is the better route.
Larger quantities, tricky access or phasing all shape the price. Site requirements like inductions and permits play a part as well.
Why clients in Selhurst choose us
- Old sealant cut out, never sealed over
- Specification-led, product-correct work
- 12-month guarantee on workmanship
- Matching to RAL references, product permitting
When it isn’t the sealant
Our job is the joint, not everything around it. On its own, sealant can’t deal with:
- Glazing units that are cracked or misted
- Joints damaged after sign-off by following trades
- Approving fire stopping as compliant
If in doubt, call 01277 525 020 or send details through our quote form and we will say what we think.
Where we work in Selhurst
- Internal decorators’ caulk
- Brick and block movement joints
- Window and door perimeters
- Sanitary and kitchen joints
- Cladding and panel joints
- Floor and skirting junctions
Different surfaces, different methods
External facade and movement joints
External movement joints often need primer, depending on the substrate. Primer goes on where the sealant maker calls for it and work only when conditions suit.
Bathrooms, en suites and washrooms
In bathrooms and washrooms, an anti-mould sanitary silicone goes around every fitting. Joints are cleaned, sealed and tooled neatly and baths are loaded where appropriate before sealing.
Places near Selhurst
What else we do in Selhurst
Maintenance after handover
Sealant joints are maintenance items, and their life depends on movement, exposure, cleaning and use. Our advice:
- Allow flexibility for external sealing in damp or cold weather
- Stick to the specified sealant rather than a generic substitute
- Share drawings and the specification as soon as possible
- Record the products used in the O&M file
A new structure shifts as it loses construction moisture. Flexible sealants in the right joints handle normal movement while rigid fillers and caulk can crack where movement is larger. If that happens, let us know.
In wet areas, a weak sanitary joint shows up quickly once the building is occupied. Leaks behind showers and basins damage finishes and floors, and the repair falls into the defects period. Getting the product and preparation right first time avoids that.
Building and refurbishing in Selhurst
Every borough of Greater London is inside the ULEZ, and that applies to contractors’ vehicles on any job in Selhurst. London sites also mean booked deliveries and limited storage, which the mastic programme has to allow for. A good number of hotels sit less than 2 miles from Selhurst. Hotel extensions and refits usually have to fit around bookings, so mastic dates are tight.
New wings at hospitals like Shirley Oaks Hospital, 1.4 miles to the south-east of Selhurst, bring long runs of window and panel joints to seal. University estates such as King's College London, 4.8 miles to the north of Selhurst, tend to have a rolling programme of new buildings and refurbishments, each with window perimeters and facade joints to seal.
Selhurst is about 5 miles south-east of Stockwell, in Greater London. Looking for construction mastic in Selhurst? We can help, as we do across Greater London. Selhurst is one of 764 places in Greater London on our list for mastic packages. London is covered too, some 7 miles away.
Anyone looking for construction mastic in SE25, SE20 and CR0 gets the same process as the rest of our area: send details, get a quote, we seal, guaranteed. We cover commercial and managed buildings on Park Road, Court Road and Dixon Road. With the A213 nearby, Selhurst is easy to get to with materials and equipment. Nearby places we also cover include South Norwood (1 mile north), Woodside (1 mile south), Ashburton (1 mile south), Elmers End (1 mile east) and Addiscombe (1 mile south) for mastic packages. Nearby towns on our patch include London (7 miles north), City of Westminster (9 miles north-west), Marylebone (9 miles north), Kensington (9 miles north-west), St Pancras (9 miles north) and Shoreditch (9 miles north).
What’s near Selhurst
In Selhurst, that means premises near Harris Academy South Norwood, South Norwood Recreation Ground and The Albion pub. Selhurst has its own railway station: Norwood Junction station. Well-known places in the area include Croydon University Hospital (1.7 miles south-west) and Crystal Palace Museum (1.4 miles north). Green spaces nearby include Duppas Hill and Dulwich Upper Wood.