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

Construction and new-build mastic in Wallington, Hampshire

Mastic packages for new-build and refurbishment projects across Wallington, carried out by CSCS-carded applicators. Fully insured and CHAS accredited.

  • A long mastic snag list close to completion
  • Perimeter gaps outside the sealant’s range
  • Sanitary sealant damaged by following trades
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
London, the South East & Scotland
Constructionline member
Fully insured: £5m PL

Need construction mastic in Wallington?

Photos, a specification or a quick description of the joints is enough to start a fixed quote.

Construction mastic in Wallington

A typical mastic package covers more than window perimeters: external door and window perimeters, internal decorators’ caulk where specified, sanitary joints in bathrooms and washrooms, kitchen worktops and splashbacks, and snagging before handover. Splitting those between trades often leaves gaps in responsibility and gives you a consistent finish across the job. If you have mastic snags holding up handover and existing joints on a refurb that need cutting out and resealing, we can put it right. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: in Wallington, that means joint design, primers and backing rod as standard.

Around places like Wallington, a lot of construction is the conversion of older buildings, which leaves joints between old walls and new frames that need a sealant able to take the movement.

Every job ends the same way: guaranteed. Our workmanship is backed for 12 months, and the quote explains what it covers.

Place
Wallington (PO16, PO14, PO17)
Wider area
Hampshire
Guarantee
12 months on every job
Quotes
Fixed quote, scope in writing
Call
01277 525 020
Page updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

General trades versus a specialist

There’s also the paperwork. Many sites expect CSCS cards, RAMS and proof of insurance, and we will confirm the paperwork you need with the quote.

Redoing a failed joint typically costs more than getting it right at the outset, 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.

Our process

Inspect, seal, sign off: that’s the shape of every visit. We inspect the joints and confirm what’s in scope, then we prepare and seal each joint with the specified product, and we finish with a walk round so the work can be signed off. If neighbouring businesses or buildings around Wallington need work too, visits can be combined. Mention the building’s opening times and we will work within them.

  1. First we look at the scope on site or from drawings.
  2. You receive a fixed quote covering scope, products and sequence.
  3. Site paperwork is confirmed and our CSCS-carded applicators are inducted.
  4. Sealing follows the programme as areas are released.
  5. Problems we find, such as oversized gaps, are raised right away.
  6. The package is closed out, snags cleared and backed by our 12-month guarantee.

Preparing the site

  • Send any specification or drawings in advance
  • Clear stock, furniture or equipment away from the joints
  • Let us know about inductions and permits

Get a fixed quote

We quote a fixed sum against the scope you give us, so the cost is agreed before work starts. To start the process, speak to us on 01277 525 020 or email the details over.

Get a quick quote

Read more

What happens if it’s left?

Sealing over damaged or contaminated new joints might save a day. Sealant can’t grip a contaminated or existing bead. Damaged joints are removed and resealed from clean faces. In a smaller place such as Wallington, getting a contractor back for a second visit takes time, so we’d suggest renewing all the joints that are going, not just the worst.

A quote for mastic packages depends on how many there are, their condition and the access. Ask us for a fixed quote.

Why clients in Wallington choose us

  • Colour agreed before work starts
  • Workmanship guaranteed for 12 months
  • One phone line for London, the South East and Scotland
  • RAL and finish matching where the product range allows

Take a look at what affects the cost and how we’re accredited.

How the quote is worked out

These are the things that shape the price:

  • Phasing around occupants
  • How much existing material needs removing
  • Which sealant the job calls for
  • The size and state of each joint

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.

Before you send an enquiry

It doesn’t need to be a full survey. These details are enough to start:

  • Rough lengths or quantities, or drawings if you have them
  • Specification clauses that apply
  • The asbestos register, for older buildings
  • The postcode of the building

For a fixed quote, speak to us on 01277 525 020 or email us. Our quote form is another easy route.

Your questions answered

Does a coastal location like Wallington affect which sealant is used?

It can, yes: buildings near the sea take more wind-driven rain, and salt in the air nearer the shore. We choose the product for the exposure, prime where the manufacturer requires it and size the joint for its movement.

Can you work at a site such as Broadcut Retail Park, by Wallington?

Yes. Estates, retail parks and business parks around Wallington, Broadcut Retail Park among them, are all within reach. To start, just call the office on 01277 525 020 or send details through our quote form with the unit, the joints involved and your access times.

Do you cover Wallington?

Yes. Wallington is in our area and the rest of Hampshire, within our coverage of Greater London, South East England and Scotland. To discuss a job, give us a call on 01277 525 020 or email a schedule or drawings.

Can you send site paperwork?

Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we’ll confirm with the quote.

Can you fit around our working hours?

Give us your site hours and any access windows in your enquiry, and we’ll schedule the work to suit. Our office runs Monday to Friday, 8am until 5pm.

Is it fine to apply new sealant on top of old?

No. Sealing over old material is one of the classic causes of early joint failure, so everything comes out first.

Do you take on mastic snagging only?

Yes. We can work through a mastic snag list area by area before handover, cutting out damaged or poor joints and resealing them.

How the job changes by surface

Fire-rated sealant where specified

Where the specification calls for fire-rated or intumescent sealant around service penetrations or linear gaps, we install it to the manufacturer’s tested detail. The design and sign-off of fire stopping sit with the designer, principal designer or fire engineer and we install what’s specified.

Window and door perimeters

Inside, a paintable sealant or decorators’ caulk is used where the joint doesn’t move much. The specification decides which.

After the work

Once the work is signed off, a little attention goes a long way:

  • Keep finished joints away from paint, plaster and scrapers
  • Put any product change through the designer first
  • Share drawings and the specification as soon as possible
  • Ask installers to correct oversized gaps first

At handover, keep the product details with the O&M information. That helps the building owner maintain the joints later and avoids guesswork when joints are renewed. We can confirm the handover information you need when we quote.

Leaving the mastic snag list to the end squeezes everyone. A planned close-out through each area as it completes keeps the list short, and avoids a rush.

Construction mastic around Wallington: how the place shapes the job

Wallington is within about 1 mile of the coast. Coastal exposure means perimeter and cladding joints work harder than on an inland job, so joint design, primers and product choice deserve extra care. Wallington is in the South East, one of the UK’s drier regions. Still, external mastic needs dry faces within the maker’s temperature limits, which isn’t every day, so external mastic is timed for workable conditions and agreed with the site manager.

Units on estates such as Broadcut Retail Park, under half a mile north-west of Wallington, tend to be reclad and refitted as tenants change, and each job leaves cladding and perimeter joints to seal. Projects at schools like Wykeham House School work to term dates, so mastic is programmed tightly. Work at a hotel such as Lysses House Hotel, under half a mile west of Wallington, tends to be programmed around bookings, mastic included.

Wallington is about 1 mile east of Fareham, in Hampshire. We cover commercial sites throughout Wallington, for single jobs and planned programmes alike. Across Hampshire, 723 places are covered, including Wallington.

Commercial sites across PO16, PO14 and PO17 are covered for mastic packages. If your site is on Bath Lane, Drift Road and Osborn Road or close by, we can quote for mastic packages. You will find Wallington on or near the A32, so getting applicators and materials to site is simple. We also cover Fareham Common (1 mile south-west), North Fareham (1 mile north), Fareham (1 mile west), Boarhunt (2 miles north-east) and Crockerhill (2 miles north) for mastic packages. Further afield, our area takes in Gosport (4 miles south), Havant (8 miles east), Eastleigh (11 miles north-west), Horndean (8 miles north-east), Totton (15 miles west) and Chandler's Ford (13 miles north-west).

What’s near Wallington

We work on buildings around Harrison Primary School, Cams Hill School and The Golden Lion Public House, among other places. The nearest railway station is Fareham station, about 1 mile west. A little further out are Fareham Shopping Centre (under half a mile west) and Knowle Hospital (2.3 miles north-west). Open spaces near Wallington include Portsdown Hill and West of the River Alver.

Map of Wallington © OpenStreetMap contributors
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