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

Construction Mastic in Northease

We carry out mastic packages for new-build and refurbishment projects in Northease. Send photographs or drawings for a fixed quote.

  • Caulk cracking where joints are moving more than expected
  • Inconsistent sealant finishes from plot to plot
  • Frame gaps too wide for sealant alone
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
12-month guarantee on our workmanship.
South East, London & Scotland
CHAS & Constructionline
Fully insured: £5m PL

Construction mastic in Northease

Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.

Construction mastic in Northease, done properly

On refurbishments, the mastic package normally includes cutting out old sealant as well as sealing new work. Existing joints have to be stripped back to sound faces, because fresh sealant can’t key into cured silicone and the asbestos survey is checked first on older stock. New and existing joints then get the same preparation. We work on floor and skirting junctions, sanitary and kitchen joints and brick and block movement joints, and the usual reasons a site gets in touch are external joints sealed in damp or cold conditions that are now failing and a mastic package split between trades with no clear owner. Facilities teams, main contractors and managing agents in Northease tend to want the same three things: a fixed quote, no surprises on site and a 12-month guarantee behind the result.

Sites around smaller places like Northease can be a fair drive from suppliers, so we come with everything the package needs, timed to the stage the job has reached. Drawings, photographs and the programme let us give a fixed quote.

The 12-month guarantee is for workmanship rather than wear and tear. How long a sealant joint lasts depends on movement, exposure, cleaning and use, so we are clear about what is covered before work starts.

The Mastic Doctor team standing beside their branded vans outside an office building
Location
Northease (BN7)
Region
East Sussex
Guarantee
12 months on every job
Quotes
A fixed quote before we start
Phone
01277 525 020
Page updated
3 November 2026

From enquiry to sign-off

Site rules come first: signing in, inductions and any permit to work. Once we are cleared to begin, we take the joints in the sequence agreed with you, and each area is checked before we leave it. Jobs in and around smaller places like Northease are usually planned as a single visit, so we ask for photos and rough sizes first. Then the right materials arrive with us.

  1. Drawings, specification and programme come to us.
  2. Quantities are measured and a fixed price returned.
  3. We agree with the site team which areas come first.
  4. Plots or floors are sealed as they’re handed over.
  5. Joints are prepared, backed and sealed to the specification.
  6. After snagging, the work is handed over under our 12-month guarantee.

Getting the site ready

  • Confirm the product named in the specification
  • Clear stock, furniture or equipment away from the joints
  • Point out parking and an unloading spot

Quotes

For a fixed quote, speak to us on 01277 525 020 or email us. You can also send details through our quote form.

Get a quick quote

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Work for main contractors and building owners

Facilities managers want contractors who arrive with the paperwork sorted. Tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we will confirm with the quote.

Hotels, schools, healthcare sites, offices and retail units come to us directly as well. We plan around the way the building is used, so guests, pupils, patients or staff are disturbed as little as possible.

Quoting for work in Northease

Quotes vary with the job. Expect it to depend on:

  • How accessible the joints are
  • Location, for remote and island sites
  • How much existing material needs removing
  • Whether the work must be split into stages

A quote for mastic packages depends on how many there are, their condition and the access, plus any specification you’re working to. Call for a quote.

What we need to price the job

To price the job accurately, we need a clear picture of the site. Send us:

  • The postcode of the building
  • How the joints are reached, and at what height
  • Clear photos of the problem areas
  • Whether an asbestos survey exists

Specifications, drawings and tender packages are welcome with any enquiry, and we will price the work to it. For smaller jobs, photos and a description will do.

When to bring in a specialist

Certain joints really need a specialist: for example fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. Getting these wrong typically costs more in the end than doing them right.

What you see is the finished bead, but most of the work is hidden. Backing rod, primer where specified and a joint designed to move with the building are easy to get wrong without experience.

New build and refits around Northease

Central London is about 46 miles from Northease. Construction around the commuter belt mixes station-side flats with refurbished offices and units, and each scheme needs its mastic sealed to programme. Northease sits in one of the drier corners of the country, the South East. Still, external mastic needs dry faces within the maker’s temperature limits, which isn’t every day, so the external programme keeps a little slack.

For a contractor working at a hospital such as Lewes Victoria Hospital, 2.4 miles to the north of Northease, perimeter and facade sealing is planned around patients and deliveries. For contractors at a college like Sussex Downs College (2 miles north of Northease), perimeters and internal sealant are timed for the holidays. When a school such as Priory School is extended or refurbished, the mastic package is often squeezed into the holidays.

Northease is about 3 miles south of Lewes, in East Sussex. We cover Northease and the rest of East Sussex, with the same fixed quotes and 12-month guarantee as everywhere else. Across East Sussex, 308 places are covered, including Northease. For work in that direction, see our Brighton page, about 6 miles away.

Postcode districts covered here: BN7 for mastic packages. We also cover Rodmell (1 mile south-east), Iford (1 mile north-west), Kingston near Lewes (2 miles north-west), Southover (2 miles north) and Cliffe (2 miles north). Nearby towns on our patch include Eastbourne (13 miles east), Seaford (6 miles south-east), Hailsham (11 miles east), Uckfield (10 miles north-east), Newhaven (4 miles south-east) and Peacehaven (3 miles south).

Local landmarks in Northease

In Northease, that means premises near Lewes and Laughton Levels. The nearest railway station is Southease station, about 1.4 miles south-east. Well-known places in the area include Lewes Castle (2.2 miles north) and Lewes Victoria Hospital (2.4 miles north). Open spaces near Northease include Southerham Farm and Itford Hill.

Map of Northease © OpenStreetMap contributors

Aftercare for building managers

Keep the joints in good shape with a few simple steps:

  • Don’t force external sealing on a damp or frosty day
  • Check frame gaps are within the sealant’s range before sealing
  • Brief the final clean team to avoid blades near sealant
  • Use the product the specification names

Brief the sparkle clean so they don’t scrape the new joints. Blades and abrasive pads are the commonest cause of damage at the final clean, so stick to soft cloths and gentle cleaners near sealant.

Frames with gaps too wide for sealant need sorting before the mastic goes on. Sealant stretched over an oversized gap won’t last so packing or adjustment by the installer comes first. We flag them as soon as we see them.

Why deal with it now?

When a package runs over budget, downgrading the product is a common first thought. A failed joint in the defects period costs far more than the product difference, especially externally. Where an alternative is genuinely suitable, we’ll say so. Older rural buildings around Northease 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.

Whether it’s a single area or a whole estate, the same things set the price: scope, access, product and programme. Call for a quote and we will put a fixed figure on it.

Why choose Mastic Doctor in Northease

  • Joints cleaned back to sound surfaces
  • A fixed quote before work starts
  • RAL and finish matching where the product range allows
  • Fully insured, including public liability cover

Read our cost guide or our accreditations.

Questions about Northease

Can work at a site such as University of Brighton fit around teaching?

Yes. Education sites typically want the work in vacations or in phases during term, and we plan to suit. Tell us which site documents you need, such as RAMS, our insurance certificate or CSCS details, and they’re confirmed with the quote.

Can you work at a site such as Cliffe Industrial Estate, by Northease?

Yes. We cover Northease and the area around it, including industrial estates, business parks and retail parks such as Cliffe Industrial Estate. Send details of the unit and the work through our quote form for a quick quote.

How long does a job like this take?

It depends on the scope, but the work normally takes as long as the agreed sequence needs, which comes down to joint lengths, access and handover dates. For bigger or phased jobs, we’ll set out a timescale with the quote.

Can you come in just for snagging?

Yes. Snag-only work is something we take on.

Is colour matching possible?

Often, 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.

Will you stick to the specified products?

We follow the specified sealant. Specifications often reference BS EN 15651 or BS 6213.

Can staff carry on working while you are here?

Yes, with some planning. We agree a sequence with your contact so just one area at a time is disrupted.

Accreditations

Trusted. Accredited. Insured.