
Mastic sealing for building owners and managing agents in Newnham, Kent
Mastic sealing for building owners, managing agents and housing associations in Newnham. CHAS accredited and fully insured, with a 12-month guarantee.
- Worn sealant at communal door frames
- Mastic failing across several blocks on an estate
- Old repairs sealed over failed mastic
Mastic sealing in Newnham
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
FAQs: Newnham
Is Newnham too far out for you?
No. Places such as Newnham are covered as much as the big towns. London and every South East county are within our area. Where we can, we group nearby jobs to make the most of each trip.
Will you take on a block within reach of Teynham 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.
How do you reach windows on upper floors?
Every block is different. How upper joints are reached is agreed before work is booked so there are no surprises.
Do you work with property factors and landlords?
Yes, block and estate work is a core part of what we do. We work through buildings in a planned order with dates agreed in advance.
How long does a job like this take?
It depends on the scope, but the work typically takes a few days for most blocks, with larger programmes scheduled building by building. For bigger or phased jobs, we will set out a timescale with the quote.
Which sealant will you use?
Where there’s a specification, we use the product it names. Otherwise, we recommend a product to suit the joint’s movement, the substrate and the conditions, following the manufacturer’s guidance.
Do you seal on top of existing sealant?
No. We cut the old material out and clean the joint back before sealing, since fresh sealant will not bond reliably to aged material.
About our mastic sealing in Newnham
On a residential block, the work happens around people’s lives. 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 while we work. The enquiries we see most involve damaged joints in communal entrances and corridors and mastic failing across several blocks on an estate, on external wall and movement joints, window and door perimeters on blocks and shopfronts below residential blocks. A single leaking joint is often how a building in Newnham first comes to us: we check the joints around it and give you an honest view of what needs doing now and what can wait.
Around smaller places like Newnham, older walls fitted with newer windows are a familiar sight. The mastic needs to suit an irregular masonry face and the look of the building.
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.
- Location
- Newnham (ME9)
- Region
- Kent
- Cover
- A 12-month guarantee
- Quotes
- Fixed quote, scope in writing
- Phone
- 01277 525 020
- Updated
- 3 November 2026

Our process
Working in a building that stays open takes some planning. We sign and contain the area we’re in, keep walkways clear and work section by section so the rest of the building stays in use. Rural sites near Newnham may need directions, gate codes or a contact on site. Add it to your enquiry and we will build it into the plan.
- We inspect each building and record the joints that have failed.
- You get a fixed quote, per block or for the whole programme.
- Dates and areas are agreed so occupiers can be told.
- Old mastic is removed and the joint faces prepared.
- Joints are resealed and tooled.
- We check the finished work and confirm the guarantee.
Before we start on site
- Confirm the product named in the specification
- Flag any permit to work we will need
- Share your working hours and any access restrictions
Get a fixed quote
If there’s a specification, drawings or a tender package, send it with your enquiry, and we’ll price against exactly what is specified. Smaller jobs need nothing more than photographs and a few notes.
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Towns and villages near Newnham
More services for Newnham
Surface by surface
External movement joints
Brickwork, blockwork and panel joints let a building move. Failed sealant in a movement joint lets water in.
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.
Keeping the joints sound
Every sealant joint needs some looking after, and their life depends on movement, exposure, cleaning and use. We suggest:
- Check the asbestos register before any old mastic is disturbed
- Log resealing dates block by block
- Look at the sunniest and most exposed elevations first
- List the paperwork your organisation requires when you send details
Add mastic joints to your cyclical inspections. Watch for splits, open gaps, hard or chalky surfaces and mastic pulling away and record where they are.
Mastic fails gradually, then all at once in a wet spell. Resealing when cracking first shows avoids water damage and the complaints that come with it.
Honest limits
Before quoting, we check that sealant is the right answer. It isn’t the answer for:
- Masonry that has broken away beside the joint
- Glazing that needs replacing
- Materials that need asbestos testing before work
If in doubt, call the office on 01277 525 020 or use the quote form and we’ll say what we think before you book.
Where we work in Newnham
- Window and door perimeters on blocks
- Communal kitchens and washrooms
- Communal entrances and stairwells
- Balcony and threshold joints
- Shopfronts below residential blocks
- External wall and movement joints
Blocks and managed buildings in Newnham
Rainfall across the South East, Newnham included, is lower than in many parts of the UK. Outside work still depends on dry joints, and the sunniest, most exposed sides of a building normally need attention first. Central London is about 41 miles from Newnham. Commuter-belt towns tend to have plenty of managed blocks near stations and town centres.
Older buildings near Newnham, from historic houses such as Belmont House and Gardens, 2.2 miles to the south-east of Newnham, to more modest stock, need compatible products when frames are resealed. For agents with blocks near Teynham station (3.4 miles north of Newnham), a block-wide mastic programme deals with frames, balconies and entrances in one go.
Newnham is about 4 miles south-west of Faversham, in Kent. We send applicators to Newnham for mastic joints, handled exactly as we handle every other area. Across Kent, 931 places are covered, including Newnham. There’s a separate page for London, about 41 miles away.
Commercial sites across ME9 are covered. If your site is on The Street, Sharsted Hill and Newnham Lane or close by, send details and we’ll quote for mastic joints. Just outside Newnham, we also work in Doddington (1 mile west), Wichling (2 miles west), Bluetown (2 miles west), Hollybushes (3 miles west) and Payden Street (3 miles south-west). A short drive away, we cover Maidstone (12 miles west), Ashford (10 miles south), Canterbury (12 miles east), Sittingbourne (5 miles north-west), Whitstable (11 miles north-east) and Faversham (4 miles north-east).
Near you in Newnham
Locally, jobs take us to sites close to The George Inn and Doddington Place Gardens and the streets around them. For rail, the closest station is Teynham station, about 3.4 miles north of the centre. Nearby you will also find Newnham Castle (less than half a mile north-east).
Common problems we fix in Newnham
Poor preparation explains many failed joints. Where the faces weren’t cleaned or primed as specified, the bead peels off one side.
Look out for the following:
- A mix of products and colours from past repairs
- Leaks at window and door perimeters
- Occupiers reporting cold air round windows
- Mastic failing across several blocks on an estate
Trustees of buildings like Church of St Peter and St Paul can bring frame and external mastic into a planned maintenance list.
Comparing quotes
- Do they follow the manufacturer’s priming guidance?
- The terms of the workmanship guarantee
- Proof of insurance
- Their plan for phasing and protecting the area
Doing it in-house
Some joints are best left to specialists: for instance fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. Getting these wrong typically costs more in the end than doing them right.
Using site staff can make sense for a small touch-up, but larger jobs are different: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.