
Mastic sealing for building owners and managing agents in New Street, Kent
Mastic sealing for building owners, managing agents and housing associations in New Street. CHAS accredited and fully insured, with a 12-month guarantee.
- Old repairs sealed over failed mastic
- Leaks at window and door perimeters
- Window mastic that has split and shrunk
Mastic sealing for New Street sites
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
New Street: questions and answers
Will you take on a block within reach of Meopham station?
Yes. Managing agents, landlords, property factors and housing associations are who this service is for. Send the address, photographs of the elevations and your access arrangements, and we’ll give a fixed quote.
Can you work at a site such as Bowes Industrial Centre, by New Street?
Yes, sites like Bowes Industrial Centre are within our area, along with the rest of New Street. Send details of the unit and the work through our quote form for a quick quote.
How many days will you need on site?
The duration is planned around your programme and the access we’re given. We’ll give you an estimate of time on site when we quote.
Will you just go over the old sealant?
No. Failed sealant is removed and the faces cleaned back to sound, dry material first, because fresh silicone will not bond with aged silicone.
Who decides which product is used?
The specification comes first, if there is one. If there isn’t one, it comes down to the joint: its movement, its surfaces and what it has to cope with.
Do you work to architects’ specifications?
Yes. We follow the specification, along with the manufacturer’s installation guidance, and any queries are raised before we start.
Will residents or tenants be disturbed?
The work is planned around occupiers. We agree the programme so you can notify occupiers, and entrances stay in use.
Mastic sealing in New Street
In buildings from before 2000, some old mastics contain asbestos. Before we disturb it, we ask to see the asbestos register or survey, and work stops for testing if there’s any doubt. Removing asbestos-containing material isn’t something we do. If you have estate-wide sealant that is simply worn out and movement joints with sealant missing, we can put it right. One point of contact handles commercial sealant work in New Street from the first photos to the final walk-round, whether it’s one building or several.
Rural conversions near places like New Street often set modern frames into older stone, flint or brick. Perimeter mastic there has to grip an uneven face and suit the building’s character.
Guaranteed is the last step of every job. You get a 12-month guarantee on our workmanship, and the quote explains what it covers.

- Where
- New Street (TN15)
- Region
- Kent
- Guarantee
- 12 months on every job
- Quotes
- Quoted before any work starts
- Call
- 01277 525 020
- Last updated
- 3 November 2026
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. Rural sites near New Street may need directions, gate codes or a contact on site. Send that with the details and we will confirm the plan with the quote.
- We inspect each building and record the joints that have failed.
- You get a fixed quote, per block or for the whole programme.
- We agree the programme and dates with you.
- Old mastic is removed and the joint faces prepared.
- New sealant goes in with backing rod and primer where needed.
- We check the finished work and confirm the guarantee.
Before we start on site
- Send any specification or drawings in advance
- Explain the parking and delivery arrangements
- For older buildings, check the asbestos register before work
Getting a fixed quote
To get a fixed quote, call the office on 01277 525 020 or email drawings and photos with the site address and an outline of the work. Our quote form is another easy route.
Related advice
Owners, agents and contractors
Hotels, schools, healthcare sites, offices and retail units book us directly too. The work is planned around how the building runs, so the building keeps working while we do.
FMs need a contractor who is easy to get on site. Let us know the documents you need (RAMS, insurance certificate, CSCS details) and we’ll confirm them with the quote.
How the job changes by surface
Window and door perimeters on blocks
On most blocks, the frame-to-wall joint is where failure shows first. We remove the failed mastic, prepare the faces, add backing rod if the joint is deep and reseal.
Planned maintenance
Resealing can be scheduled alongside other planned works on a timetable you set.
Common problems we fix in New Street
The edges of the material itself sometimes break away for instance where render or brick edges crumble. We will tell you if the joint edges need repairing before resealing.
Any of the following is a good reason to get the joints checked over:
- No planned programme for sealant
- Brittle perimeter mastic across a building
- A mix of products and colours from past repairs
- Failed external movement joints
Historic properties like Cobham College, 3.6 miles to the north-east of New Street, show the age of some local stock, where frame mastic must suit soft brick or stone.
Before you book anyone
- Are they CHAS accredited or on Constructionline?
- How they handle RAMS and site documents
- Their plan for phasing and protecting the area
- The named product and why it was chosen
Also near New Street
Other services in New Street
Why deal with it now?
Adding sealant to cyclical maintenance is an easy win. Waiting until leaks appear means working under pressure and less choice about when. Older rural buildings around New Street move with the seasons, and rigid or tired sealant can’t keep up. A sealant with the right movement capability, correctly sized, lasts far better.
Small jobs and large programmes are priced from the same things: scope, access, product and programme. Call for a quote and we’ll put a fixed figure on it.
What you get with us
- Coloured sealants to suit the setting, where available
- Colours confirmed for the specified product
- RAL and finish matching where the product range allows
- Failed material removed, not covered up
What we can’t put right
A proper diagnosis includes knowing what sealant can’t do. You’ll hear from us if the cause turns out to be any of the following:
- Water coming in from the roof or rainwater goods
- Materials that need asbestos testing before work
- Glazing that needs replacing
If you are not sure, just call 01277 525 020 or email a schedule or drawings and we’ll give you a straight answer.
What we seal
- Shopfronts below residential blocks
- Balcony and threshold joints
- Communal entrances and stairwells
- Communal kitchens and washrooms
- External wall and movement joints
- Window and door perimeters on blocks
Frames, entrances and external joints in New Street
Central London is about 21 miles from New Street. Commuter-belt towns tend to have plenty of managed blocks near stations and town centres. New Street is in the South East, one of the UK’s drier regions. External mastic still waits for dry faces and the right temperature, and the sunniest, most exposed sides of a building typically need attention first.
Site managers at schools like Culverstone Green Primary School can fit frame mastic into the summer works. Landlords with units on estates such as Bowes Industrial Centre (0.9 miles north-east of New Street) can bring frame, door and external mastic across several units into one programme.
New Street is about 6 miles south of Northfleet, in Kent. Anywhere in TN15, the process is the same: details in, fixed quote out, then sealing and a 12-month guarantee. New Street is one of 931 places we cover in Kent for mastic joints. Our London page has more on work in that area.
We take on mastic joints across the TN15 postcode area, for business premises of every kind. If your building is just outside New Street, we cover Ridley (1 mile west), South Street (1 mile east), Hodsoll Street (1 mile south-west), Culverstone Green (1 mile south-east) and Priestwood Green (1 mile east). Further afield, our area takes in Maidstone (10 miles south-east), Dartford (8 miles north-west), Sevenoaks (8 miles south-west), Royal Tunbridge Wells (15 miles south), Gravesend (6 miles north) and Tonbridge (11 miles south).
What’s near New Street
Locally, jobs take us to sites close to Meopham School and Trosley Country Park and the streets around them. The nearest railway station is Meopham station, roughly 2.4 miles north of the centre. Other landmarks nearby include Ightham Court (4.6 miles south-west) and Coldrum Long Barrow (2.7 miles south-east).