Facade and window perimeter sealing in Broadstairs, Kent
Facade joint and window perimeter sealing on commercial buildings throughout Broadstairs and nearby, carried out by CSCS-carded applicators. Fully insured and CHAS accredited.
- Air leaks through failed facade joints
- Facade joints cracked through the middle
- Old perimeter mastic that has dried out
Facade sealing in Broadstairs
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Facade sealing in Broadstairs, done properly
Most facade joint failures trace back to the joint, not just the sealant. The width has to suit the expected movement and the sealant’s movement capability, and closed-cell rod sets the depth, keeping the bond to two faces with the ratio the sealant maker recommends, often around 2:1. We work on shopfront frames, stone and brick facade joints and coping and flashing joints, and the failures we’re asked to look at most are new sealant peeling off old mastic and water coming in around window frames. A single leaking joint is often how a building in Broadstairs first comes to us: we look at the rest while we’re there and tell you what we find.
For contractors on site in a town like Broadstairs, the mastic has to fit the programme: sealing as scaffold comes down or as each floor is decorated, and snagging before handover. Tell us the programme and we will quote to it.
A 12-month guarantee applies to all our work in Kent. Should something we installed fail, phone 01277 525 020 or email drawings and photos and we’ll come back to it.
- Where
- Broadstairs (CT10, CT9, CT12)
- Region
- Kent
- Cover
- 12 months on every job
- Quote
- Quoted before any work starts
- Phone
- 01277 525 020
- Last updated
- 3 November 2026
General trades versus a specialist
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 usually costs more in the end than doing them right.
A short, simple internal joint is often within reach of a maintenance team. Where it goes wrong is preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.
Diagnose, treat, sign off
A typical day starts with protection: masking tape along the joint edges and sheeting over anything nearby. On site, the work typically takes anything from a single day to several weeks, depending on joint lengths, access and the weather, and we clear our waste as we work. For a town like Broadstairs, we try to group jobs for the same client into one visit, with one quote covering them. Tell us when the building is open and we will plan to suit.
- We look at the joints, the drawings and the access before pricing.
- Failed sealant is cut out along its full length.
- Joint faces are cleaned to firm, sound material, with primer where the sealant maker specifies it.
- Closed-cell rod fixes the depth, and the sealant grips two sides only.
- A facade-grade sealant rated for the movement goes in, tooled to a concave profile.
- We walk the finished joints with you before handing over.
Before we start on site
- Explain the parking and delivery arrangements
- Tell us what induction or permit system the site runs
- Share your working hours and any access restrictions
Ask for a quote
Photos, drawings or a schedule of the joints and a fixed quote comes back to you. Where a site visit makes more sense, we’ll arrange one.
Advice
Why act early in Broadstairs
Topping up a failed joint usually buys very little time. A full cut-out and reseal costs more on the day but lasts much longer, so you aren’t paying for the same joint twice. Many buildings in towns like Broadstairs have been extended or altered, and joints where old meets new tend to fail first. Resealing them early protects the building behind.
Access often affects the price as much as the sealing: easy-to-reach joints are quicker than those that need equipment to get to. Tell us how the joints are reached and call for a quote.
Why choose Mastic Doctor in Broadstairs
- A fixed quote before work starts
- Fully insured, including public liability cover
- CHAS accredited
- Coloured sealants to suit the setting, where available
Take a look at how commercial sealant jobs are priced and our accreditations and insurance.
Do you need facade sealing in Broadstairs?
A frequent fault is a bead stuck to the joint’s rear face as well as its sides. Without rod or bond-breaker tape, the bead is held back and tears as the joint moves.
It’s worth sending us details if you spot any of the following:
- Failed seals around shopfront and entrance frames
- Unsightly perimeter sealant on a visible elevation
- Gaps between rainscreen or cladding panels
- Patch repairs that keep failing
Work at a hotel such as Belvidere Hotel (to the south-east of Broadstairs) tends to be programmed around bookings, mastic included.
Comparing quotes
- What level of public liability insurance do they hold?
- Their pre-qualification and accreditations
- How joint depth will be controlled
- Whether primer will be used where the manufacturer specifies it
Nearby places to Broadstairs
Also in Broadstairs
Work for main contractors and building owners
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. Keys, access and contacts can be agreed in advance.
Planned maintenance programmes are welcome: working through a building or an estate in stages that fit your budget. Broadstairs can form part of a wider programme.
Common questions from Broadstairs clients
Do you take on work at healthcare sites like Queen Elizabeth The Queen Mother Hospital?
Yes. Healthcare sites are among the places we work. Before anything starts, the estates team agrees permits, inductions and infection-control measures with us.
Can you work at a site such as Northdown Industrial Estate, by Broadstairs?
Yes. Our area takes in Broadstairs and its surroundings, with estates and business parks such as Northdown Industrial Estate included. Photos and a short description are enough for a first look.
Can you work on upper floors?
That varies with the building and the access on offer. When you ring 01277 525 020 or email a schedule or drawings, describe the access, and we’ll plan the work with you.
Can you work while the building is occupied?
Yes, as long as we plan it. We agree a sequence with your contact so just one area at a time is disrupted.
Do you work to architects’ specifications?
Yes. Include it with the drawings when you ask for a quote, and we’ll price the work to it.
Can you look at water coming in around a frame?
Yes. Photos are often enough to start, followed by a visit if needed. Many frame leaks are sealant failures, though not all, and we’ll tell you which.
Can the sealant be colour-matched?
In many cases, yes. Sealants are made in a wide range of standard colours, and matching to RAL references or nearby finishes is commonly requested. We’ll confirm the colours available for the specified product.
New build and refits around Broadstairs
Broadstairs sits close to the coast, within about 1 mile. On a coastal site, facade and perimeter joints face driven rain and, closer to the beach, salt, and the sealant, primer and backing need choosing with that in mind. Broadstairs is about 66 miles from central London. Building activity in the commuter belt runs from new flats near stations to business park refurbishments, which keeps mastic packages in demand.
On a healthcare site such as Queen Elizabeth The Queen Mother Hospital, which lies north-west of Broadstairs, new blocks and refurbishments go on while the hospital keeps running, so mastic work is sequenced carefully. Projects at colleges like EKC Broadstairs College (0.6 miles south-east of Broadstairs) tend to run to term dates, so the mastic is planned tightly.
Broadstairs is about 16 miles east of Canterbury, in Kent. We send applicators to Broadstairs for facade joints, handled exactly as we handle every other area. Broadstairs is one of 931 places in Kent on our list. We also cover London, around 66 miles from Broadstairs.
Business premises anywhere in CT10, CT9 and CT12 are within our area for facade joints. Among the streets we cover are High Street, Union Square and Church Road, and sites on any of them can send details for a fixed quote. Being close to the A254 and A255, Broadstairs is straightforward for us to reach. Nearby places we also cover include Upton (1 mile south-west), St Peter's (1 mile north-west), Northwood (1 mile south-west), Kingsgate (2 miles north) and Northdown (2 miles north) for facade joints. A short drive away, we cover Deal (10 miles south), Herne Bay (13 miles west), Walmer (11 miles south), Whitfield (15 miles south-west), Sandwich (7 miles south-west) and Aylesham (14 miles south-west).
Around Broadstairs
Locally, jobs take us to sites close to The Charles Dickens School, The Charles Dickens School and The Little Albion Inn, among other places. Broadstairs has its own railway station: Broadstairs station. Nearby you will also find Queen Elizabeth the Queen Mother Hospital (2 miles north-west) and Westwood Cross (1.5 miles west). The countryside around Broadstairs includes Sandwich and Pegwell Bay.
Surface by surface
Perimeter joints at frames and structure
The joint around a framed system, where it meets the structure, needs sealant. We seal those perimeter joints rather than the system it surrounds.
Cladding panel joints
Where panels are sealed rather than open-jointed, the bead is part of the weather line. Failed runs are cut out and rebuilt end to end to the correct depth.