
Mastic sealing for building owners and managing agents in Northwood, Kent
Mastic sealing for building owners, managing agents and housing associations throughout Northwood and nearby, by CSCS-carded applicators. Fully insured and CHAS accredited.
- Window mastic that has split and shrunk
- Estate-wide sealant that is simply worn out
- Movement joints with sealant missing
Mastic sealing for businesses in Northwood
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Mastic sealing for commercial buildings in Northwood
There isn’t one mastic for every joint on a building. Window perimeters and external joints often take a low-modulus neutral-cure silicone, and MS polymer sealants stick well to many substrates and often take paint. We’ll confirm the colours available for the specified product. The enquiries we see most involve failed external movement joints and old repairs sealed over failed mastic, across window and door perimeters on blocks, balcony and threshold joints and shopfronts below residential blocks. A specialist sealant contractor works differently from a general builder: on jobs in Northwood, preparation and product choice get the time they need.
In a smaller place such as Northwood, landlords and agents tend to look after small blocks, flats over shops, sheltered housing and commercial units. The mastic around their frames and external joints ages like anywhere else.
Our 12-month guarantee is about workmanship, not wear and tear. Sealant wears with time, and movement, weather, cleaning and use decide how fast, so we spell out the cover before we begin.
- Location
- Northwood (CT12, CT10, CT11)
- Region
- Kent
- Guarantee
- A 12-month guarantee
- Quote
- Fixed quote, scope in writing
- Call
- 01277 525 020
- Last updated
- 3 November 2026

Quoting for work in Northwood
Sealant work doesn’t have a standard rate, since sites vary so much. What we look at:
- Site requirements such as inductions and permits
- Any access equipment needed
- Joint width, depth and condition
- Whether old sealant has to be cut out first
There’s no price list, because the scope varies so much from one building to the next. Call for a quote and we’ll price your job on its own details.
Details that help us quote
The more we know, the firmer the quote. Helpful details to send:
- Your programme or deadline
- Rough lengths or quantities, or drawings if you have them
- Asbestos survey details if the building is older
- Any specification or named product
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 send photos by email.
Also near Northwood
Other services in Northwood
FAQs: Northwood
Can being near the sea in Northwood affect the sealant we need?
It can. Wind-driven rain and, closer to the shore, salt air are harder on external joints. That puts more weight on product choice, primers where the manufacturer specifies them, and correct joint sizing.
Is Northwood off your patch?
Not at all: smaller places are covered as well as towns. London and every South East county are within our area. We plan jobs in smaller places so return trips are kept to a minimum.
Do you check for asbestos in old sealant?
We don’t remove asbestos-containing materials. Anything suspect is tested before we carry on in line with the dutyholder’s asbestos management.
What’s the quickest route to a quote?
The quote form is the simplest route, though you can also ring 01277 525 020 or email drawings and photos. Include photographs or drawings if you have them.
Do you guarantee the mastic work?
A 12-month guarantee covers our work. It covers our workmanship, not later building movement, damage or frame failures.
How many days will you need on site?
It depends on the scope, though a typical visit typically takes anything from a day to a few weeks, depending on the number of buildings and joints. For bigger or phased jobs, we will set out a timescale with the quote.
Can you plan resealing across several buildings?
We can. Each building is inspected, quoted and scheduled in turn, and the programme can start with the worst.
Mastic sealing around Northwood: how the place shapes the job
The sea is no more than about 2 miles from Northwood. Sea-facing elevations take driven rain and salt, and their mastic shows it before the sheltered sides do, and they deserve more regular inspection. The South East is one of the drier parts of the UK. Outside mastic still needs a dry joint and the right temperature, while the elevations that take the most sun tend to show hardened mastic first.
Schools and community buildings such as Dame Janet Primary Academy need frame and external mastic kept sound like any building. Blocks of flats and mixed-use buildings often cluster around stations such as Ramsgate station (to the south of Northwood) and their window and balcony mastic tends to age at the same rate across a building. Older buildings near Northwood, from historic houses such as Quex Park (3.6 miles west of Northwood) to more modest stock, need compatible products when frames are resealed.
Northwood is about 1 mile north-west of Ramsgate, in Kent. Any commercial site in Northwood is covered, for single jobs and planned programmes alike. Our Kent coverage takes in 931 places, from busy centres to rural villages. Sites around London have their own page, about 65 miles away.
Business premises anywhere in CT12, CT10 and CT11 are within our area. If your site is on Gwyn Road, Coxes Lane and Roman Road or close by, send details and we’ll quote for mastic joints. Being close to the A254 and A256, Northwood is easy to get to with materials and equipment. Sites close to Northwood are covered too, including Ramsgate (1 mile south-east), Upton (1 mile east), St Lawrence (1 mile south), St Peter's (1 mile north-east) and Broadstairs (1 mile north-east). Nearby towns on our patch include Canterbury (15 miles west), Dover (15 miles south), Deal (9 miles south), Herne Bay (12 miles west), Walmer (10 miles south) and Wincheap (15 miles west).
Landmarks near Northwood
Recent enquiries here include premises near The Derby Arms, The Charles Dickens School and The Royal Harbour Academy. For rail, the closest station is Ramsgate station, about 0.8 miles south. A little further out are Westwood Cross (0.5 miles north-west) and Ramsgate Museum (1.4 miles south-east). Green spaces nearby include Sandwich and Pegwell Bay.
Honest limits
Some faults sit outside our scope, and we say so rather than covering them up:
- Glazing that needs replacing
- Cracked or crumbling render, brick or stone at the joint edges (we will tell you if so)
- Materials that need asbestos testing before work
If in doubt, give us a call on 01277 525 020 or email a schedule or drawings and we’ll say what we think before you book.
Surfaces we seal
- Communal entrances and stairwells
- External wall and movement joints
- Window and door perimeters on blocks
- Balcony and threshold joints
- Communal kitchens and washrooms
- Shopfronts below residential blocks
Should maintenance staff do it?
The visible bead is only part of the job. Correct depth, the right primer and a sealant matched to the movement are where general trades tend to cut corners.
A short, simple internal joint is often within reach of a maintenance team. The usual problems come from preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.
On site: what to expect
In a busy building, we agree a sequence with your contact so the disruption stays in one area at once. Each section is protected, cleaned back and sealed, then handed back before the next one starts. What matters most for a job in Northwood is a clear list of what needs doing, so send photographs of each area. A fixed quote follows.
- A building-by-building inspection lists the failed joints.
- The quote is fixed and split as suits you.
- 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.
What we need from you
- Arrange parking or a loading space
- Tell us what induction or permit system the site runs
- Move anything stored against the joints
Request a quote
A good quote starts with a clear picture: the joints involved, quantities, access and the product called for. Share whatever details you have and we’ll fill any gaps with a visit.
Related advice
Different surfaces, different methods
Planned maintenance
Adding mastic to planned maintenance avoids reactive repairs and spreads the work.
External movement joints
The joint width has to suit the movement and the sealant’s capability with the width-to-depth ratio set as the manufacturer advises.
Keeping the joints sound
Sealant joints are maintenance items, and how long they last depends on how they’re treated. Our advice:
- Encourage occupiers to report problems at frames
- Check the asbestos register before any old mastic is disturbed
- Check sealant joints during planned building inspections
- Plan resealing building by building rather than complaint by complaint
Keep records of when each building was resealed. That makes future programmes easier to plan and shows what was done.
Joints on a building age together, so it pays to look at the whole elevation. Doing them together saves going back again and again.