
Commercial sealant contractors in Northwood, Kent
Sealant work in Northwood for main contractors, managing agents and facilities managers: sealant work for offices, shops, hotels and other commercial buildings, quoted at a fixed price.
- Earlier reseals applied straight onto the failed bead
- Wall and floor joints that have lost their seal
- Window and door perimeter joints that have cracked open
Commercial sealant contractors in Northwood
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
What affects the price in Northwood
There’s no standard rate for sealant work, because every site is different. What we look at:
- Access and working height
- How much existing material needs removing
- Specialist products, such as fire-rated or hygienic sealants
- Quantities, in metres or numbers
Quantities, awkward access and phased working all shape the price. Site requirements like inductions and permits play a part as well, along with the time of year for external work.
What to include in your enquiry
The more we know, the firmer the quote. When you get in touch, include:
- Whether an asbestos survey exists
- Whether the building will be occupied during the work
- Any specification or named product
- How the joints are reached, and at what height
Every job follows the same four steps: send details, get a quote, we seal, guaranteed. The first step is to phone 01277 525 020 or email drawings and photos with what you know.
Commercial sealant contractors in Northwood, done properly
Sealant joints are easy to overlook until one lets water in. Mastic Doctor works as a commercial sealant contractor for facilities managers, managing agents and main contractors looking after property in Northwood. Our job is to diagnose the failure, remove the old bead and seal again using a product chosen for the movement and exposure. If you are dealing with greasy, split joints in a kitchen or tea point and sanitary sealant that has gone black and patchy, we can help. Most enquiries from Northwood start with one failed joint and grow into a wider look at the building: we look at the rest while we’re there and tell you what we find.
In an occupied building in Northwood, the job is planned so areas stay in use: washrooms in turn, floors in sections and entrances kept open.
Places like Northwood tend to have a handful of commercial buildings: a local shop, a pub or restaurant, a surgery, a school and the odd office or workshop. They’re not big jobs one by one, but their joints need the same preparation as anywhere.
We sign every job off with a 12-month guarantee. It’s a plain promise: if the work we did fails within twelve months, we return to fix it.
- Place
- Northwood (CT12, CT10, CT11)
- Wider area
- Kent
- Guarantee
- 12 months on our workmanship
- Price
- A fixed quote before we start
- Call
- 01277 525 020
- Last updated
- 3 November 2026

Site staff or a sealant specialist?
Some joints are best left to specialists: for example fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. A poor seal in places like these tends to cost more to put right later.
General builders and handymen seal joints, but it isn’t their main trade. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint.
When something else is needed
Some faults sit outside our scope, and we say so rather than covering them up:
- A failed roof covering or waterproofing membrane
- Faulty windows rather than failed perimeter sealant
- A dripping trap, valve or pipe behind a fitting
Not sure which it is? You can call 01277 525 020 or send photos by email and we’ll tell you honestly.
Surfaces we seal
- Washrooms and tea points
- Window and door perimeters
- Floor and threshold joints
- External facade joints
- Kitchen worktops and splashbacks
- Movement joints in walls and floors
Commercial sealant contractors in Northwood: the local picture
The sea is no more than about 2 miles from Northwood. Shopfronts, frames and external joints on commercial buildings there take wind-driven rain and, closer to the shore, salt in the air. Where a frontage needs a particular colour, the product still has to suit that exposure. Six care or nursing homes sit less than 2 miles from Northwood. Care settings have kitchens, lounges and corridors where joints need to be neat and easy to clean; colours can be chosen to suit the interior.
Shop fits at places like Broadstairs Retail Park (under half a mile north of Northwood) leave counters, frontages and floor edges where the sealant colour is part of the finish. A business with units at Broadstairs Retail Park and Pysons Road Industrial Estate needn’t use two contractors for its sealant.
Northwood is about 1 mile north-west of Ramsgate, in Kent. Businesses, contractors and managing agents in Northwood can call on us for sealant joints. Northwood is one of 931 places we cover in Kent. Sites around London have their own page, roughly 65 miles from Northwood.
Business premises anywhere in CT12, CT10 and CT11 are within our area for sealant joints. Among the streets we cover are Gwyn Road, Coxes Lane and Roman Road, and sites on any of them can send details for a fixed quote. Being close to the A254 and A256, Northwood is straightforward for us to reach. 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). A short drive away, we cover 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).
Around Northwood
Locally, jobs take us to sites close to The Derby Arms, The Charles Dickens School and The Royal Harbour Academy. Northwood’s nearest 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.
Signs you need commercial sealant contractors in Northwood
When a bead peels cleanly off one face, it has failed in adhesion. The usual causes are poor preparation, a missed primer, contamination on the joint face or sealant bonded to the base of the joint. We see it often where joints were sealed in a hurry.
It’s worth sending us details if you spot any of the following:
- Water staining near frames, panels or ceilings
- Layers of sealant, all of them failing
- Mouldy silicone around WCs, urinals and vanity tops
- Frame mastic that has hardened and come away from the wall
A hotel such as The Sylvan Hotel (to the south-east of Northwood) shows how much sealant a hospitality building has on show, from bathroom joints to the bar.
What your quote should include
- Whether primer will be used where the manufacturer specifies it
- How long is the guarantee, and what does it include?
- Who will actually carry out the work
- Will failed sealant be removed rather than covered?
From enquiry to sign-off
We begin with a short walk round with whoever looks after the building, to confirm the scope, the order of work and any areas we must keep clear. After that, any old or failed material is removed, each joint is prepared and the new sealant goes in. If neighbouring businesses or buildings around Northwood need work too, visits can be combined. Mention the building’s opening times and we will work within them.
- We begin with whatever information you have, whether that’s photos, a drawing or a list of locations.
- We work out why the joints have failed and fix a quote for the agreed scope.
- We plan around your site hours and access windows, phasing the work where areas have to stay in use.
- We strip the failed bead and prepare both faces of the joint.
- Backing and primer go in where needed, then the chosen sealant is applied and tooled.
- Finished joints are checked with you and handed over with our 12-month guarantee.
What we need from you
- Tell us what induction or permit system the site runs
- Move anything stored against the joints
- Point out parking and an unloading spot
Ask for a quote
Tell us about the building, the joints and when you need the work done, and we’ll put a fixed quote together. To get it moving, call 01277 525 020 or send details through our quote form.
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Work for main contractors and building owners
CHAS accredited and a Constructionline member, we’re straightforward to vet for your supplier list. We’re fully insured, and our insurance certificate can go with the quote.
Whether you’re a managing agent, a property factor or an owner’s representative: send the details, accept a fixed quote, and we carry out and guarantee the work. We can agree access arrangements and keyholder contacts beforehand.
Your questions answered
Must a hotel around Northwood close while you work?
Rarely, if ever. We take a few rooms out at a time. Tell us your quiet periods and access windows and we’ll plan around them.
Can being near the sea in Northwood affect the sealant we need?
It can. Driven rain and salt are tougher on outside sealant than sheltered inland conditions. That puts more weight on product choice, primers where the manufacturer specifies them, and correct joint sizing.
Are your applicators CSCS-carded?
Yes. Our applicators hold CSCS cards, as many construction sites ask for.
Is failed sealant stripped out, or sealed over?
Every scrap of failed sealant is removed before the new bead goes on. A bead laid on old silicone peels away and isn’t worth paying for.
Can you work to our specification?
Yes. The specification and the manufacturer’s installation guidance are what we work to, and we raise anything unclear before work begins.
Will you just go over the old sealant?
No, never. Overlaying old sealant is a frequent cause of early failure, so it all comes out first.
How long before the joints can be used?
Curing time varies by product, and we confirm it on the day.