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

Construction Mastic in Holbury

Looking for construction mastic in Holbury? Send us the details for a fixed quote, backed by a 12-month guarantee on the work.

  • Oversized or tapered gaps around new frames
  • Snag items on joints that need redoing before handover
  • Sealant knocked or painted over by other trades
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
12-month guarantee on our workmanship.
South East, London & Scotland
Constructionline member
£5m PL insurance

Need construction mastic in Holbury?

Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.

Construction mastic for commercial buildings in Holbury

A typical mastic package covers more than window perimeters: frame perimeters inside and out, caulking to trims and boards where the specification calls for it, sanitary silicone, kitchens, and the final snag list. Splitting those between trades often leaves gaps in responsibility. We work on internal decorators’ caulk, window and door perimeters and sanitary and kitchen joints, and the failures we’re asked to look at most are missed perimeter joints on a new elevation and a mastic package split between trades with no clear owner. One point of contact handles commercial sealant work in Holbury from the first photos to the final walk-round, for single jobs and planned programmes alike.

Around places like Holbury, 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.

Our 12-month guarantee is about workmanship, not wear and tear. Sealant wears with time, and movement, weather, cleaning and use decide how fast, so we are clear about what is covered before work starts.

The Mastic Doctor team standing beside their branded vans outside an office building
Place
Holbury (SO45)
Region
Hampshire
Cover
12 months on every job
Quote
A fixed quote before we start
Phone
01277 525 020
Last updated
3 November 2026

Facades, frames and programmes in Holbury

Holbury sits close to the coast, within about 2 miles. Facades and window perimeters on coastal schemes take more wind-driven rain, and salt air nearer the shore, so we check the specified product suits the exposure before the first bead. Rainfall across the South East, Holbury included, is lower than in many parts of the UK. That doesn’t stop wet spells, or frosty starts that leave panels too damp to seal, so external mastic is timed for workable conditions and agreed with the site manager.

When a school such as Cadland Primary School is extended or refurbished, the mastic package is often squeezed into the holidays. Recladding or extending a unit at a site like Glenmore Business Park, 1 mile to the north-west of Holbury, brings panel joints and frame perimeters into the programme. For contractors at a college like Totton College Waterside Centre, 2.2 miles north-west of Holbury, perimeters and internal sealant are timed for the holidays.

Holbury is about 2 miles south of Hythe, in Hampshire. Businesses, contractors and managing agents in Holbury can call on us for mastic packages. We work across 723 places in Hampshire, large and small. For work in that direction, see our Southampton page (6 miles or so).

If you need construction mastic in SO45, the process matches everywhere else we work: details, then a fixed price, then sealing and a 12-month guarantee. If your site is on Beechwood Road, Park Hill Close and Pondhead Close or close by, send details and we’ll quote for mastic packages. Just outside Holbury, we also work in Little Holbury (1 mile north-west), Roughdown (1 mile south), Hardley (1 mile north), Blackfield (1 mile south-east) and Langley (1 mile south). A short drive away, we cover Gosport (10 miles east), Eastleigh (10 miles north), Fareham (8 miles east), Totton (8 miles north-west), Chandler's Ford (11 miles north) and Hedge End (7 miles north-east).

Near you in Holbury

Recent enquiries here include premises near The New Forest Academy. The closest station to Holbury is Netley station, roughly 3.8 miles north-east. Nearby you’ll also find Beaulieu Abbey And Display Of Monastic Life (3.1 miles west) and Calshot Castle (3.4 miles east). Not far away are Mercury Marshes.

Map of Holbury © OpenStreetMap contributors

After the work

Regular inspection catches problems early. Specifically:

  • Don’t force external sealing on a damp or frosty day
  • Ask cleaners to use soft cloths around fresh sealant
  • Don’t schedule sealing before decorators and flooring are done
  • Protect sealed areas from following trades

Once an area is sealed, protect it from following trades. Fresh sealant needs its cure time before it’s cleaned, painted near or knocked; we confirm the time for each product.

One unsealed frame can let water into finished internal areas. That typically means redoing finishes in a completed area, and a delay to handover. Checking perimeters before internal finishes go on avoids it.

What sets the cost

These are the things that shape the price:

  • How accessible the joints are
  • Phasing around occupants
  • Joint width, depth and condition
  • Site requirements such as inductions and permits

The specified product makes a difference, as does the preparation each joint needs. Access, phasing and site requirements come into it too.

Before you send an enquiry

A good diagnosis starts with the right details. Tell us:

  • Any dates the work must fit around
  • What the building is and how it’s used
  • Approximate linear metres or a joint schedule
  • Asbestos survey details if the building is older

We quote a fixed sum against the scope you give us, so you know the figure before anyone is on site. To ask for one, call 01277 525 020 or send photos by email.

On site: what to expect

The first thing on site is a walk round with your contact, agreeing which joints are in scope, where to start and what must stay open. Then we strip out anything that has failed, prepare every joint and seal it. If neighbouring businesses or buildings around Holbury need work too, visits can be combined. Mention the building’s opening times and we’ll work within them.

  1. Drawings, the sealant specification and your programme come to us for pricing.
  2. You receive a fixed quote listing scope, products and phasing.
  3. Any site paperwork you need (RAMS, insurance certificate, CSCS details) is confirmed with the quote.
  4. Areas are sealed plot by plot or floor by floor as the trades hand them over.
  5. Joints are cleaned, primed where the maker requires it, backed and sealed to the specification.
  6. Before handover, snags are dealt with and the package is signed off under our 12-month guarantee.

Before we start on site

  • Tell us which areas need to stay in use
  • Point out parking and an unloading spot
  • Clear stock, furniture or equipment away from the joints

Getting a fixed quote

Specifications, drawings and tender packages are welcome with any enquiry, and we’ll price against exactly what is specified. Smaller jobs need nothing more than photos and a few notes.

Get a price

Read more

Why it’s worth doing now in Holbury

Patching snags as they appear can feel quicker than a proper close-out. But one planned snagging pass through each area usually clears more for less disruption. Snagging can be priced as a separate stage. In a smaller place such as Holbury, getting a contractor back for a second visit takes time, so it’s worth dealing with every failing joint at once.

The work involved drives the cost: removing old material, preparing the joints, the product, the access and how the work is phased. Call for a quote.

Why us?

  • Constructionline member
  • A range of standard colours, depending on the product
  • Our applicators hold CSCS cards
  • Colour options checked against the specified product

See what affects the cost and our accreditations and insurance.

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. Fire stopping design belongs to the designer and building control.

Snagging before handover

Snags typically come from damage by following trades, missed joints or poor earlier work. We price snagging as part of the package or as a separate visit.

Building owners, agents and FMs in Holbury

Agents, factors and owners’ representatives all follow the same route: send details, get a fixed quote, we seal, guaranteed. Keys, access and contacts can be agreed in advance.

Main contractors use us as their sealant subcontractor on new-build and refurbishment projects. Programme, specification and site rules come first, with CSCS-carded applicators on site.

Holbury: questions and answers

Will you plan work around the academic year at somewhere like Totton College Waterside Centre?

Yes, holiday working periods are the norm on campus jobs. 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 on a hospital site such as Hythe Hospital?

Yes, healthcare and care buildings are part of our work. Work is phased so departments keep running, under the site’s own rules.

Do you do internal caulk as well as external mastic?

Window and door perimeters, internal decorators’ caulk where specified, sanitary joints, kitchens, movement joints and snagging. We price to the specification and drawings.

Can you fit around our programme?

Working to your programme, we seal each area as it’s handed over. The sequence is settled with your site team and updated as the programme moves.

Can you come in just for snagging?

Yes. We clear snags by redoing joints rather than patching them to suit the programme.

Do you take on multi-site work?

Yes. We take on portfolio and planned maintenance work, planned site by site to suit how each building is used.

How long does a job like this take?

That varies with the scale of the job, but the work usually takes anything from a day of snagging to several weeks of plot-by-plot sealing on a phased scheme. Larger or phased jobs take longer, and we’ll give you a timescale with the quote.

Accreditations

Trusted. Accredited. Insured.