
St Paul's Cray mastic sealing
Mastic sealing for St Paul's Cray, from a contractor working since 2005. Fully insured and CHAS accredited.
- No planned programme for sealant
- Damaged joints in communal entrances and corridors
- Brittle perimeter mastic across a building
Mastic sealing for businesses in St Paul's Cray
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
For owners and agents in St Paul's Cray
The 2 miles around St Paul's Cray include 10 care or nursing homes. Owners of care premises can bring window and door mastic into a phased programme planned around the home. For a London block, the agent or landlord usually handles notices to residents and access to flats. We fit the programme to your notice periods.
For agents with blocks near St Mary Cray station (under half a mile south of St Paul's Cray), a block-wide mastic programme deals with frames, balconies and entrances in one go. Property owners at sites such as Brook Industrial Estate, under half a mile to the south-east of St Paul's Cray, can have mastic renewed between lettings. Older community buildings, St Barnabas among them, often have frames of mixed ages whose mastic varies.
St Paul's Cray is about 1 mile north of Orpington, in Greater London. Anywhere in BR5, the process is the same: send details, get a fixed quote, we seal, and the work is guaranteed. Across Greater London, 764 places are covered, St Paul's Cray among them. For work in that direction, see our London page (11 miles or so).
Work on mastic joints is covered throughout BR5 and BR7. For a building on Main Road, Murray Road and Rushet Road or nearby, we can quote for mastic joints. Sites close to St Paul's Cray are covered too, including St Mary Cray (1 mile south), Poverest (1 mile south), Derry Downs (1 mile south), Orpington (1 mile south) and Kevington (2 miles south-east). Nearby towns on our patch include London (11 miles north-west), City of Westminster (14 miles north-west), Marylebone (14 miles north-west), Kensington (15 miles north-west), St Pancras (13 miles north-west) and Shoreditch (12 miles north-west).
What’s near St Paul's Cray
In St Paul's Cray, that means premises near Kemnal Technology College, The Blue Anchor Public House and Walsingham School. St Paul's Cray has its own railway station: St Mary Cray station. A little further out are Lullingstone Castle (4.8 miles south-east) and London Borough of Bromley Museum (1.5 miles south). Not far away are The Warren and Summer Hill.
About our mastic sealing in St Paul's Cray
Owners and agents typically inherit a building’s mastic rather than choose it and it slowly wears out: window perimeters, door frames, external joints and communal junctions all rely on it. When it hardens, splits or pulls away, water and draughts follow, and occupiers start reporting it. We work on balcony and threshold joints, external wall and movement joints and window and door perimeters on blocks, and the usual reasons a site gets in touch are mastic failing across several blocks on an estate and a mix of products and colours from past repairs. A specialist sealant contractor works differently from a general builder: on jobs in St Paul's Cray, preparation and product choice get the time they need.
In a London area such as St Paul's Cray, many buildings are blocks of flats or mixed-use buildings run by managing agents, landlords or housing associations. Mastic around windows, doors and balconies tends to fail across a whole block at a similar time, which is why block-wide programmes make sense.
Every job we finish is backed by a 12-month workmanship guarantee, in St Paul's Cray as everywhere else we work. If a joint we sealed fails because of how it was installed, we come back and put it right.
- Where
- St Paul's Cray (BR5, BR7)
- Wider area
- Greater London
- Guarantee
- 12 months on our workmanship
- Price
- Quoted before any work starts
- Telephone
- 01277 525 020
- Page updated
- 3 November 2026

Work for main contractors and building owners
For main contractors, we work as the sealant subcontractor. Programme, specification and site rules come first, and our applicators hold CSCS cards.
Planned maintenance programmes are welcome: working through a building or an estate in stages that fit your budget. Sites in St Paul's Cray can sit alongside others in a wider programme.
Places near St Paul's Cray
Other services in St Paul's Cray
Site staff or a sealant specialist?
Site maintenance staff can often handle a short internal joint. Where it goes wrong is preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.
For most general trades, sealant is a sideline. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint.
Different surfaces, different methods
Estate-wide resealing programmes
Priority order can follow condition, complaints or your maintenance plan. Quotes can be per block or for the full programme.
Commercial and mixed-use buildings
Landlords with commercial portfolios have shopfronts, office entrances and external joints to look after. We work across portfolios on a planned basis.
What affects the price in St Paul's Cray
To price the job, we consider:
- Any access equipment needed
- How much existing material needs removing
- The product specified
- Backing rod, priming and other preparation
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.
Before you send an enquiry
The more we know, the firmer the quote. When you get in touch, include:
- The postcode of the building
- When you need the work done
- The asbestos register, for older buildings
- Photos of the joints, close up and from further back
The quickest route to a quote is a few photos and the site postcode. Upload them with the quote form, or phone 01277 525 020 or email the details over if you’d rather talk the job through.
Leave it or put it right?
Mixed repairs by different contractors leave a patchwork of products and colours. Resealing a whole building gives a consistent finish. In St Paul's Cray, 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.
The work involved drives the cost: stripping out, preparation, sealing, access and phasing. Call for a quote and we’ll explain how it’s made up.
Why clients in St Paul's Cray choose us
- Health and safety: CHAS accredited
- Constructionline member
- One number for every site we cover
- Matching to RAL references, product permitting
Take a look at what affects the cost or how we’re accredited.
On site: what to expect
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. For a job in St Paul's Cray, access comes first: booked loading, goods lifts, the building’s permit system and a spot to keep materials. Give us the hours we can be on site and we will schedule to suit.
- We check the asbestos register for older buildings and look at the joints.
- The products and programme are set out in a fixed quote.
- We strip out the old sealant.
- The joints are prepared and resealed with the right product.
- Buildings are completed in turn.
Preparing the site
- Clear stock, furniture or equipment away from the joints
- Confirm the product named in the specification
- Point out any areas we must not close
Quotes
Pricing a project or setting a maintenance budget? We’ll quote against your scope and drawings you can plan around. For a chat about it beforehand, call 01277 525 020 or use the quote form.
Read more
Your questions answered
Will you take on work at estates like Brook Industrial Estate, close to St Paul's Cray?
Yes. We cover St Paul's Cray and the area around it, including industrial estates, business parks and retail parks such as Brook Industrial Estate. To start, just phone 01277 525 020 or email us with the unit, the joints involved and your access times.
Will you work in a care home in St Paul's Cray without moving residents out?
Yes. Care settings are planned area by area, at times agreed with the home. We follow the home’s own procedures throughout.
Do you check for asbestos in old sealant?
Asbestos removal isn’t part of our work. Anything suspect is tested before we carry on in line with the dutyholder’s asbestos management.
Do you work to architects’ specifications?
Yes. The specification and the manufacturer’s installation guidance are what we work to, and we raise anything unclear before work begins.
Can you plan resealing across several buildings?
Yes. Each building is inspected, quoted and scheduled in turn starting wherever is most urgent.
What’s the quickest route to a quote?
You can use the quote form on this site; alternatively, ring 01277 525 020 or use the quote form. Photos, drawings or a joint schedule help us quote quickly.
What will the job cost?
We don’t publish prices, as every site differs. Send photographs or drawings and we’ll price it at a fixed figure.