The Mastic Doctor team standing beside their branded vans outside an office building
East Sussex · England

Sealant specialists in Hastings

Sealant work for offices, shops, hotels and other commercial buildings throughout Hastings and nearby, carried out by CSCS-carded applicators. CHAS accredited and fully insured.

  • Weathered facade sealant that no longer flexes
  • Layers of sealant, all of them failing
  • Mouldy silicone around WCs, urinals and vanity tops
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Signed off, with 12 months’ guarantee.
London, the South East & Scotland
Constructionline member
£5m PL insurance

Commercial sealant contractors for businesses in Hastings

Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.

Questions about Hastings

Our building in Hastings is near the coast: does that change the sealant?

It can. Wind-driven rain and, closer to the shore, salt air are harder on external joints. We choose the product for the exposure, prime where the manufacturer requires it and size the joint for its movement.

Is York Road Business Centre, near Hastings, within your area?

Yes. Our area takes in Hastings and its surroundings, with estates and business parks such as York Road Business Centre included. To start, just give us a call on 01277 525 020 or send photos by email with the unit, the joints involved and your access times.

Does weather matter for sealant work?

For external joints, yes. The joint has to be dry and within the product’s temperature range, so damp, frosty or very cold days can stop external work. Inside work is seldom held up.

Does commercial sealant work come with a guarantee?

Our workmanship is guaranteed for 12 months. Public liability insurance is in place too.

Can you handle sealant work across several sites?

Yes, we can. Send a list of addresses and what’s needed at each, and we’ll put together a fixed quote and a sensible order of work.

Do you work directly for building managers?

Yes. A large share of our work comes through facilities managers, managing agents and landlords, alongside main contractors. We can work to your instruction process and site rules.

Will you just go over the old sealant?

No. We cut the old material out and clean the joint back before sealing, because fresh silicone will not bond with aged silicone.

About our commercial sealant contractors in Hastings

Most commercial buildings carry hundreds of metres of sealant that nobody thinks about until it fails. Mastic Doctor works as a commercial sealant contractor for facilities managers, managing agents and main contractors. Our job is to diagnose the failure, remove the old bead and seal again using a product chosen for the movement and exposure. Site teams most often ask us about external beads that have gone brittle and cracked and smeared sealant across finishes from a rushed job, on washrooms and tea points, movement joints in walls and floors and external facade joints. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, the work in Hastings is the same: failed joints cut out, faces prepared and the right sealant laid to the right depth.

A lot of what we do in Hastings is replacing sealant that has done its years: hardened, cracked or shrunk away from the faces, and letting water or dirt in.

Places the size of Hastings typically have a broad commercial mix: business parks, retail centres, hotels, surgeries and offices above the high street. That variety is why a single contractor covering several premises can help.

Our workmanship is guaranteed for 12 months, wherever the site is. If a joint we sealed fails because of how it was installed, we come back and put it right.

Location
Hastings (TN34, TN38, TN37, TN35)
Wider area
East Sussex
Cover
12 months on every job
Price
Quoted before any work starts
Telephone
01277 525 020
Page updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

Our process

Diagnose, treat, sign off: that’s the shape of every visit. First comes an inspection and agreement on scope, then the work is carried out to the specified product and detail, and the job ends with a walk round and sign-off. Bigger buildings in Hastings are normally done in phases agreed with the site or facilities manager, so the building keeps working. Send drawings or photographs and we will set out a phasing plan with the quote.

  1. First, details come to us: photographs, drawings or a schedule of the areas, and a site visit is booked where it helps.
  2. Next comes a diagnosis and a fixed quote.
  3. Before anything is cut out, we agree access, timings and sequence.
  4. We strip the failed bead and prepare both faces of the joint.
  5. We fit backing to the right depth, prime where specified and lay the new bead.
  6. We walk the completed areas with you and sign them off under the 12-month guarantee.

Before we start on site

  • Point out any areas we must not close
  • Clear stock, furniture or equipment away from the joints
  • Let building users know which areas are affected

Ask for a quote

Photos, drawings or a schedule of the joints are often enough for a fixed quote. Where a site visit makes more sense, we will arrange one.

Get a quick quote

Read more

Commercial sealant contractors in Hastings: the local picture

Hastings lies within about 2 miles of the sea. Exposed frontages near the sea are hard on sealant, so the product has to suit the weather as well as the look. Where a frontage needs a particular colour, the product still has to suit that exposure. Eight care or nursing homes sit less than 2 miles from Hastings. Kitchens and communal rooms in care settings are cleaned constantly, so their joints need to be smooth and sound, often in colours that suit the décor.

For a shop at a centre such as Priory Meadow Shopping Centre, which lies south-east of Hastings, tidy joints at counters and displays matter as much as the fixtures. Shops and cafés around stations like St Leonards Warrior Square station, 0.9 miles to the south of Hastings, trade from early, so work is timed around them. Refits at hotels like Eagle House Hotel (to the south of Hastings) bring joints at vanity tops, bars and reception desks that guests see every day.

Hastings is in East Sussex. We cover commercial sites throughout Hastings, whether it’s a single job or part of a planned programme. Hastings is one of 308 places in East Sussex on our list for sealant joints. Brighton is covered too, some 30 miles away.

We cover the TN34, TN38, TN37 and TN35 postcode districts for sealant joints. Among the streets we cover are London Road, Church Road and Upper Church Road. Hastings sits on or close to the A21 and A28, which helps when planning parking and deliveries for the job. Nearby places we also cover include Silverhill (1 mile west), Blacklands (1 mile east), St Helen's (1 mile north-east), Hollington (1 mile north-west) and St Leonards (1 mile south-west). Nearby towns on our patch include Eastbourne (13 miles south-west), Bexhill-on-Sea (4 miles west), Hailsham (13 miles west), Polegate (14 miles west), Old Town (15 miles south-west) and Heathfield (15 miles north-west). Hastings is one of the busier places in East Sussex, and we take on sealant joints for its commercial and public buildings.

Near you in Hastings

Recent enquiries here include premises near William Parker Sports College, University School and The Duke pub and the streets around them. Hastings’s nearest station is St Leonards Warrior Square station, about 0.9 miles south. Well-known places in the area include Conquest Hospital (1.2 miles north) and Priory Meadow Shopping Centre (1.1 miles south-east). Open spaces near Hastings include Senlac Hill and Church Wood and Robsack Wood.

Map of Hastings © OpenStreetMap contributors

Keeping the joints sound

Sealant joints are maintenance items, and how long they last depends on how they’re treated. Our advice:

  • Note dates and locations of sealant work for future planning
  • Don’t let cleaning or traffic back on before the cure time is up
  • Act on the first lifting edges rather than waiting
  • Add sealant to the planned maintenance inspection list

In washrooms and kitchens, extraction makes a real difference to sealant life. Extraction that isn’t working keeps the joints wet, which is how mould gets back in. It’s worth having fans checked while the sealant is fresh.

Tenants and staff spot black or split sealant quickly, and it reflects on how the building is run. Replacing it on a planned cycle keeps complaints down.

Commercial clients in Hastings

Planned maintenance programmes are welcome: working through a building or an estate in stages that fit your budget. Sites in Hastings can sit alongside others in a wider programme.

Agents, factors and owners’ representatives all follow the same route: send the details, accept a fixed quote, and we carry out and guarantee the work. We can agree access arrangements and keyholder contacts beforehand.

General trades versus a specialist

Paperwork matters too. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and our CSCS-carded applicators are used to working under those rules.

Putting right a botched joint often costs more than sealing it well at the start, because the whole bead must be removed and the faces cleaned back again. That’s why many clients bring in a specialist from the beginning.

What the job involves on each surface

Movement joints in walls and floors

Brickwork, blockwork and floor slabs all have movement joints that need a flexible seal. When the seal fails, debris gets in and the joint stops working. The joints are resealed using a sealant matched to the movement and any traffic.

Fire-rated seals where specified

Not every penetration suits a sealant. Other products, such as collars, wraps and batts, are specified for different services, and we will tell you if the detail calls for something else.

What affects the price in Hastings

A fixed quote reflects the actual work. It allows for:

  • How accessible the joints are
  • How much existing material needs removing
  • The size and state of each joint
  • Phasing around occupants

Access often affects the price as much as the sealing: joints within easy reach take less time than ones that need access equipment. Tell us how the joints are reached and call for a quote.

Details that help us quote

To price the job accurately, we need a clear picture of the site. Useful things to include:

  • Any specification or named product
  • When you need the work done
  • The postcode of the building
  • The type of building and who uses it

Let us know the site, the scope and your timescale, and a fixed quote will follow. The easiest way is to call the office on 01277 525 020 or email a schedule or drawings.

Accreditations

Trusted. Accredited. Insured.