
Mastic Sealing in Perry Vale
Mastic sealing for building owners, managing agents and housing associations in Perry Vale. CHAS accredited and fully insured, with a 12-month guarantee.
- Patchy repairs in mismatched sealant
- Brittle perimeter mastic across a building
- Movement joints with sealant missing
Mastic sealing for Perry Vale sites
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
About our mastic sealing in Perry Vale
In buildings from before 2000, some old mastics contain asbestos. Before we disturb it, we ask to see the asbestos register or survey and if it’s suspected, work stops until it’s tested. Removing asbestos-containing material isn’t something we do. We work on shopfronts below residential blocks, communal kitchens and washrooms and window and door perimeters on blocks, and the failures we are asked to look at most are open joints in brickwork or panels and estate-wide sealant that is simply worn out. A single leaking joint is often how a building in Perry Vale first comes to us: we look at the rest while we’re there and tell you what we find.
In a London area such as Perry Vale, 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.
Work we carry out comes with a 12-month guarantee. Should something we installed fail, call 01277 525 020 or send details through our quote form and we’ll come back to it.
- Location
- Perry Vale (SE23, SE26, SE6)
- Wider area
- Greater London
- Cover
- A 12-month guarantee
- Quotes
- Fixed quote, scope in writing
- Phone
- 01277 525 020
- Page updated
- 3 November 2026

Questions about Perry Vale
Do you cover business parks and estates near Perry Vale, such as Clyde Vale Industrial Estate?
Yes. Our area takes in Perry Vale and its surroundings, with estates and business parks such as Clyde Vale Industrial Estate included. Photos and a short description are enough for a first look.
Do you work for managing agents with blocks near Forest Hill station?
Yes. Blocks of any size are within what we do. Photos of each elevation help us quote accurately.
Can people stay in the building while you reseal?
Residents and tenants carry on as normal. If any flats or units need access, we will tell you in advance so it can be arranged.
Do you guarantee the mastic work?
A 12-month guarantee covers our work. It applies to our workmanship rather than damage or problems with the frames.
Does the weather affect the work?
For external joints, yes. The joint has to be dry and within the product’s temperature range, so frost, rain or cold mornings can delay outside work. Inside work is seldom held up.
Do you cover Perry Vale?
Yes. Sites across Perry Vale are covered.
How long before the joints can be used?
We’ll confirm how long the chosen product needs to cure, and flag anything to keep off until it has cured.
Towns and villages near Perry Vale
Other services in Perry Vale
When something else is needed
Our job is the joint, not everything around it. On its own, sealant can’t deal with:
- Leaks through the frame itself rather than the perimeter
- Masonry that has broken away beside the joint
- Old mastic suspected of containing asbestos, which must be tested and dealt with by a specialist first
Not sure which it is? You can give us a call on 01277 525 020 or email a schedule or drawings and we’ll tell you honestly.
What we seal
- Window and door perimeters on blocks
- External wall and movement joints
- Communal kitchens and washrooms
- Shopfronts below residential blocks
- Balcony and threshold joints
- Communal entrances and stairwells
Quoting for work in Perry Vale
Your fixed quote is built from the real scope. It takes account of:
- The total length or number of joints
- Removal of failed or old sealant
- Whether the work must be split into stages
- The product specified
Cost follows what’s involved: removing old material, preparing the joints, the product, the access and how the work is phased. Call for a fixed quote.
What we need to price the job
For an accurate fixed quote, we need to understand the site. Useful things to include:
- Whether the building will be occupied during the work
- Asbestos survey details if the building is older
- Where the site is, with the postcode
- Photos of the joints, close up and from further back
A good quote starts with a clear picture: the joints involved, quantities, access and the product called for. Send what you have, and we will arrange a site visit if anything is unclear.
How a job runs
On arrival, we report to your site contact and complete whatever induction the building runs. Everything around the joints gets protected before anything is cut or cleaned, and the work usually takes a day or two for a single block, longer for an estate programme. The ULEZ covers the whole of Greater London, and parking near a job is rarely simple. Let us know about any on-site parking or loading arrangements when you send the job details.
- Each block or building is walked and the failed joints recorded with the likely cause.
- You get a fixed quote, priced per building where that helps your budgeting.
- The programme is fixed with you, including dates you can pass on to residents or tenants.
- Failed mastic is removed and the faces taken back to sound, dry material.
- Deep joints get backing rod, faces are primed if the manufacturer specifies it, then the joint is sealed and tooled.
- Each building is checked on completion and the work carries our 12-month guarantee.
Before we start on site
- Have the specification and drawings to hand
- Share the asbestos register for older buildings
- Tell us which areas need to stay in use
Get a fixed quote
Let us know the site, the scope and your timescale, and we’ll put a fixed quote together. To get it moving, speak to us on 01277 525 020 or email a schedule or drawings.
Related advice
When to bring in a specialist
Using site staff can make sense for a small touch-up, but larger jobs are different: a specialist brings efficiency, a consistent finish and a 12-month guarantee.
There’s also the paperwork. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and we’ll confirm the paperwork you need with the quote.
Blocks and managed buildings in Perry Vale
The 2 miles around Perry Vale include five care or nursing homes. Care home owners need frame and external mastic kept sound without unsettling residents. Blocks in London are typically run by managing agents, landlords or housing associations, with residents to notify and access to arrange. We plan around the notices and access you arrange.
Schools and community buildings such as Perrymount Primary School need frame and external mastic kept sound like any building. If you own or manage units on a site such as Clyde Vale Industrial Estate, which lies west of Perry Vale, failed mastic on frames, door surrounds and external joints can be dealt with unit by unit.
Perry Vale is about 3 miles south of New Cross, in Greater London. Our applicators travel to Perry Vale for work on mastic joints, handled exactly as we handle every other area. Our Greater London coverage takes in 764 places, large and small.
Work on mastic joints is covered throughout SE23, SE26 and SE6, for business premises of every kind. Buildings on Como Road, Mayow Road and South Road are within our area for mastic joints. If your building is just outside Perry Vale, we cover Bell Green (1 mile south-east), Sydenham (1 mile south-west), Bellingham (1 mile east), Southend (1 mile east) and Forest Hill (1 mile north-west). Further afield, our area takes in London (5 miles north-west), City of Westminster (7 miles north-west), Marylebone (7 miles north-west), Kensington (8 miles north-west), St Pancras (7 miles north-west) and Shoreditch (6 miles north).
Local landmarks in Perry Vale
Locally, jobs take us to sites close to Mayow Park, Capitol Cinema pub and Forest Hill School and the streets around them. For rail, the closest station is Forest Hill station, about 0.5 miles north-west of the centre. Well-known places in the area include Lewisham Shopping Centre (2.3 miles north-east) and Greenwich Castle (3.5 miles north-east). The countryside around Perry Vale includes Dacres Wood and Knight's Hill.
What happens if it’s left?
A bead run over old mastic can look like a repair. It won’t grip the old sealant and soon comes away. Full removal and proper preparation is what lasts. Failed sealant in a building in Perry Vale can quickly affect neighbours, tenants or the floor below. Dealing with it early is simpler for everyone.
Whether it’s a single area or a whole estate, the same things set the price: scope, access, product and programme. Call for a quote, and you’ll have a fixed figure to work with.
Why appoint us
- Our applicators hold CSCS cards
- One phone line for London, the South East and Scotland
- Failed material removed, not covered up
- Coloured sealants to suit the setting, where available
Take a look at what affects the cost or how we’re accredited.
When to call us in Perry Vale
Previous repairs often sealed new mastic over old. New silicone has nothing to grip on old silicone, so these repairs rarely last.
Typical triggers for a call:
- Failed external movement joints
- The same joint failures repeated across a portfolio
- Worn sealant at communal door frames
- Complaints coming in block by block
If you are responsible for a building such as Christ Church, frame and door mastic needs the same attention as any other property.
Before you book anyone
- The named product and why it was chosen
- What the guarantee covers, and for how long
- Whether their applicators hold CSCS cards
- Is depth set with backing rod, or bond-breaker tape in shallow joints?