Mastic Sealing in Norbury
Mastic sealing for building owners, managing agents and housing associations in Norbury. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.
- Mastic failing across several blocks on an estate
- Repeated reactive repairs to the same buildings
- A mix of products and colours from past repairs
Mastic sealing near Norbury
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Quoting for work in Norbury
Quotes vary with the job. It mainly depends on:
- Backing rod, priming and other preparation
- Phasing around occupants
- Whether old sealant has to be cut out first
- Access and working height
The specified product makes a difference, as does the preparation each joint needs. Access, phasing and site requirements come into it too.
Details that help us quote
To price the job accurately, we need to understand the site. Send us:
- Any dates the work must fit around
- Asbestos survey details if the building is older
- Drawings or a marked-up plan, if available
- The product your specification calls for
Need a figure for a tender or a budget? Send the scope and any drawings, and we’ll return a fixed quote you can plan around. If you have questions first, call the office on 01277 525 020 or use the quote form.
Mastic sealing for commercial buildings in Norbury
Blocks are lived in, so access and disruption have to be thought through. The sequence, the areas and the dates are settled with you, giving you what you need to notify residents. Communal entrances and stairs stay usable throughout. Most enquiries involve complaints coming in block by block and window mastic that has split and shrunk, on communal entrances and stairwells, shopfronts below residential blocks and communal kitchens and washrooms. Looking for mastic applicators who cover Norbury? We have been sealing commercial buildings since 2005.
For managing agents in Norbury, resident access, notice periods and the building’s rules shape the job. Work is planned with the agent so residents get notice and access is arranged in advance.
A 12-month guarantee applies to all our work. Should something we installed fail, give us a call on 01277 525 020 or use the quote form and we will come back to it.
- Where
- Norbury (CR7, SW16, SE19)
- Wider area
- Greater London
- Guarantee
- 12 months on every job
- Quotes
- A fixed quote before we start
- Phone
- 01277 525 020
- Last updated
- 3 November 2026
Why act early in Norbury
Open external joints let water into walls and around frames. That can lead to damp, staining and damage to finishes and those cost far more to put right. Access in London is hard enough to arrange once, so it makes sense to deal with every failing joint while access is in place.
There’s no price list, because the scope varies so much from one building to the next. For a fixed figure, call for a quote and we’ll price your job on its own details.
Why us?
- Colours confirmed for the specified product
- Old sealant cut out, never sealed over
- A Constructionline member, so easy to vet
- Fully insured
Read how commercial sealant jobs are priced and our accreditations.
When to bring in a specialist
General builders and handymen seal joints, but it isn’t their main trade. A specialist prepares properly, controls joint depth and picks a product with the right movement class.
Putting right a botched joint often costs more than sealing it well at the start, because the whole bead must be removed and the faces cleaned back again. For that reason, many FMs and contractors use a sealant specialist from the outset.
How the job changes by surface
Commercial and mixed-use buildings
Commercial occupiers usually stay open during the work, so we plan around them.
Planned maintenance
Adding mastic to planned maintenance avoids reactive repairs and spreads the work.
When to call us in Norbury
Topping up old mastic is a common shortcut. New sealant won’t grip failed sealant, so these repairs rarely last.
These are often picked up first by site or facilities staff:
- Patchy repairs in mismatched sealant
- Brittle perimeter mastic across a building
- Draught complaints from residents or tenants
- Failed external movement joints
Trustees of buildings like St Oswald can bring frame and external mastic into a planned maintenance list.
Before you book anyone
- Will failed sealant be removed rather than covered?
- How they handle RAMS and site documents
- Is depth set with backing rod, or bond-breaker tape in shallow joints?
- Are they CHAS accredited or on Constructionline?
For owners and agents in Norbury
The 2 miles around Norbury include four care or nursing homes. Care home owners need frame and external mastic kept sound without unsettling residents. Blocks in London are normally run by managing agents, landlords or housing associations, with residents to notify and access to arrange. We work to your notice and access plan.
Site managers at schools like Kensington Avenue Primary School can fit frame mastic into the summer works. Buildings close to stations like Norbury station (to the west of Norbury) are often flats over shops, with frame mastic to keep sound.
Norbury is about 1 mile north of Thornton Heath, in Greater London. We cover commercial sites throughout Norbury, for single jobs and planned programmes alike. Norbury is one of 764 places we cover in Greater London. London is covered too, around 6 miles from Norbury.
We cover the CR7, SW16 and SE19 postcode districts for mastic joints. For a building on Green Lane, Croft Road and Downs Road or nearby, we can quote for mastic joints. Just outside Norbury, we also work in Pollards Hill (1 mile north), Thornton Heath (1 mile south), Streatham (2 miles north-west), Streatham Park (2 miles north-west) and Mitcham (2 miles west). Further afield, our area takes in London (6 miles north), City of Westminster (8 miles north), Marylebone (8 miles north), Kensington (7 miles north-west), St Pancras (8 miles north) and Shoreditch (8 miles north).
What’s near Norbury
We work on buildings around Norbury Manor Business and Enterprise College for Girls, Grangewood Park and Silburn Reid and the streets around them. The closest station to Norbury is Norbury station, about 0.6 miles west. Nearby you’ll also find Crystal Palace Museum (1.5 miles north-east) and Croydon University Hospital (1.3 miles south). For a walk, there’s Knight's Hill and Biggin Wood.
Places near Norbury
Other services in Norbury
Our process
At the end of each section, the masking comes off, the area is cleaned and every joint is checked. Where the sealant needs time to cure before use, we tell you and sign the area. Planning a London job such as one in Norbury starts with access. Send the building rules and access times with your enquiry.
- We inspect the joints, building by building, and record what has failed and why.
- A fixed quote follows, split by block or building if that suits you.
- The sequence and the dates are fixed with you, giving you what you need to notify occupiers.
- We remove the old mastic completely and clean the joint faces back.
- 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.
Preparing the site
- Clear stock, furniture or equipment away from the joints
- Point out parking and an unloading spot
- Let building users know which areas are affected
Quotes
Send details, get a quote, we seal, guaranteed: that’s how every job runs. To take the first step, give us a call on 01277 525 020 or use the quote form.
Read more
Questions about Norbury
Will you take on a block within reach of Norbury station?
Yes, and several blocks can go on one quote. Send the address, photos of the elevations and your access arrangements, and we will give a fixed quote.
Can work in a care setting near Norbury go ahead while residents are there?
Yes, with the manager deciding the order and timing of rooms. Noise and disruption are kept to a minimum.
Is mastic sealing guaranteed?
Every building we reseal has a 12-month guarantee. It applies to our workmanship rather than damage or problems with the frames.
Can you follow the specification on our project?
Yes. We follow the specification, along with the manufacturer’s installation guidance, and we raise anything unclear before work begins.
Is asbestos a concern with old mastic?
Asbestos removal isn’t part of our work. Anything suspect is tested before we carry on, and the duty to manage asbestos sits with the dutyholder.
What about access for upper-floor joints?
We talk through access for each building when we quote. Tell us the building height and any access already in place and we will confirm the approach in the quote.
How many days will you need on site?
The duration is planned around your programme and the access we are given. We will give you an estimate of time on site when we quote.