Construction and new-build mastic in Old Town, Greater London
Sealant work in Old Town for main contractors, managing agents and facilities managers: mastic packages for new-build and refurbishment projects, with a fixed quote first.
- Cracks opening in caulked internal joints
- Sanitary sealant damaged by following trades
- A long mastic snag list close to completion
Construction mastic for Old Town sites
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Aftercare for building managers
Problems stay small when the joints are checked regularly. Specifically:
- Record the products used in the O&M file
- Allow flexibility for external sealing in damp or cold weather
- Brief the final clean team to avoid blades near sealant
- Keep finished joints away from paint, plaster and scrapers
At handover, keep the product details with the O&M information. Future maintenance is easier when the products are known and avoids guesswork when joints are renewed. We can confirm the handover information you need when we quote.
A missed perimeter seal on one window can wet the reveal and the plaster inside. On a new building that means remedial work after decorating and possibly a delayed handover. Checking perimeters before internal finishes go on avoids it.
About our construction mastic in Old Town
Most of the packages we price run well beyond frames: external door and window perimeters, internal decorators’ caulk where specified, sanitary joints in bathrooms and washrooms, kitchen worktops and splashbacks, and snagging before handover. Splitting those between trades often leaves gaps in responsibility and gives you a consistent finish across the job. We work on internal decorators’ caulk, window and door perimeters and floor and skirting junctions, and what we’re called in for most is oversized or tapered gaps around new frames and cracks opening in caulked internal joints. A single leaking joint is often how a building in Old Town first comes to us: we look at the rest while we’re there and tell you what we find.
Construction in a London area such as Old Town means working on constrained sites: limited storage, booked deliveries and access shared with other trades. We fit around the programme, sealing each elevation or floor as other trades hand over.
We stand behind the joints we seal: 12 months, guaranteed. That covers our preparation and application, and we come back if anything isn’t right.
- Place
- Old Town (CR0, CR9, CR90)
- Region
- Greater London
- Cover
- A 12-month guarantee
- Quote
- A fixed quote before we start
- Call
- 01277 525 020
- Page updated
- 3 November 2026
Also near Old Town
What else we do in Old Town
When something else is needed
A few problems need another trade or a different fix, and we say so rather than covering them up:
- Approving fire stopping as compliant
- Frames fitted out of tolerance
- Glazing units that are cracked or misted
If you are not sure, just ring 01277 525 020 or email drawings and photos and we’ll give you a straight answer before you book.
What we seal
- Internal decorators’ caulk
- Brick and block movement joints
- Sanitary and kitchen joints
- Floor and skirting junctions
- Window and door perimeters
- Cladding and panel joints
Owners, agents and contractors
Hotels, schools, healthcare sites, offices and retail units book us directly too. We plan around the way the building is used, so guests, pupils, patients or staff are disturbed as little as possible.
Planned maintenance programmes are welcome: working through a building or an estate in stages that fit your budget. Sites in Old Town can sit alongside others in a wider programme across Greater London.
Diagnose, treat, sign off
We bring the products specified for the job, along with primers and backing rod. Any old material is cut back to clean, sound faces, primer goes on where the manufacturer specifies it, and the sealant is tooled off neatly. Most London premises stay occupied while we’re on site, so we agree zones and timings with the building or facilities manager. Phased work keeps the rest of the building in use.
- We start with the drawings, specification and programme.
- We take off quantities and return a fixed quote.
- 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.
Getting the site ready
- Explain the parking and delivery arrangements
- Send your site hours and access windows
- Let us know about inductions and permits
Getting a fixed quote
A good quote starts with a clear picture: the joints involved, quantities, access and the product called for. Share whatever details you have and we will fill any gaps with a visit.
Advice
Signs you need construction mastic in Old Town
Three-sided adhesion is a frequent fault on new work. Bonded to the base of the joint and both sides, sealant can’t stretch evenly so we set the depth properly before sealing.
If one of these sounds familiar, it’s time for a closer look:
- Old sealant on a refurbishment that needs stripping before new work
- Perimeter gaps outside the sealant’s range
- Mastic snags holding up handover
- Internal caulk splitting as the building dries out
When a college such as Croydon College, under half a mile to the east of Old Town, builds or refurbishes, the mastic package usually has to fit around students and staff.
What your quote should include
- Their pre-qualification and accreditations
- How they’ll work around occupants
- What the guarantee covers, and for how long
- Whether primer will be used where the manufacturer specifies it
Why deal with it now?
Sealing over damaged or contaminated new joints might save a day. New sealant laid on old or dirty sealant has nothing to bond to and the defect reappears in the defects period. Damaged joints are removed and resealed from clean faces. Failed sealant in a building in Old Town can quickly affect neighbours, tenants or the floor below. Dealing with it early is simpler for everyone.
No two sites price the same: the joint sizes, the specified product, access and working hours each have a bearing. Send the details and a fixed figure follows.
Why appoint us
- Over 20 years of commercial sealing
- Colour options checked against the specified product
- Specification-led, product-correct work
- Matching to RAL references, product permitting
Read our cost guide or how we’re accredited.
Questions we are asked in Old Town
Do you take on jobs in Old Town where loading and access are tightly controlled?
Yes. Booked loading bays, goods lifts and permit-to-work systems are normal for London jobs. The building manager’s rules go straight into our method.
Will you plan work around the academic year at somewhere like Croydon College?
Yes. Tell us the term dates, vacation periods and access windows, and we will plan the work around them. Tell us which site documents you need, such as RAMS, our insurance certificate or CSCS details, and they’re confirmed with the quote.
Is it fine to apply new sealant on top of old?
No, never. Sealing over old material is one of the classic causes of early joint failure, so everything comes out first.
What about RAMS and site documents?
Each site asks for different documents, so tell us what you need and we will confirm it when we quote.
Can fire-rated sealing at service penetrations be included?
We install fire-rated sealant where it is the specified product to the tested detail. If the detail calls for collars, wraps or batts instead, we will tell you.
Do you work in Old Town?
Yes. We cover Old Town, and you can ring 01277 525 020 or use the quote form to get started.
Can you work to our specification?
Yes. We follow the specification, along with the manufacturer’s installation guidance.
Sites and facades in and around Old Town
Old Town has a good number of hotels close by, all within 2 miles. Hotel extensions and refits usually have to fit around bookings, so mastic dates are tight. Site traffic in Old Town falls within London’s ULEZ, like everywhere else in Greater London. Deliveries are booked and storage is tight, so mastic materials come in as needed.
For a contractor at a hotel such as Leonardo Hotel London Croydon, which lies north-east of Old Town, the mastic often has to be finished before a reopening date. Projects at schools like The Minster Nursery and Infant School work to term dates, so mastic is programmed tightly.
Old Town is about 1 mile north-west of Croydon, in Greater London. We cover Old Town, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. Old Town is one of 764 places we cover in Greater London for mastic packages. There’s a separate page for London, roughly 9 miles from Old Town.
If you need construction mastic in CR0, CR9 and CR90, the process matches everywhere else we work: send details, get a quote, we seal, guaranteed. For a building on Park Lane, Fell Road and Abbey Road or nearby, send details and we will quote for mastic packages. Close to Old Town, our area also takes in Waddon (1 mile south-west), Broad Green (1 mile north), Beddington (1 mile west), Bandonhill (1 mile south-west) and Russell Hill (2 miles south-west). Bigger towns within reach include London (9 miles north), City of Westminster (10 miles north), Marylebone (10 miles north), Kensington (10 miles north-west), St Pancras (11 miles north) and Shoreditch (11 miles north).
Landmarks near Old Town
In Old Town, that means premises near Rutherford School, The Gun Tavern and St Andrew's CofE School, among other places. Old Town has its own railway station: West Croydon station. Well-known places in the area include Croydon University Hospital (1.2 miles north) and Croydon Airport Visitor Centre (1.3 miles south-west). Green spaces nearby include Roundshaw Downs and Duppas Hill.