
Construction and new-build mastic in Passfield, Hampshire
Need construction mastic in Passfield? It’s simple: send details, get a quote, we seal, guaranteed.
- Existing joints on a refurb that need cutting out and resealing
- Sealant knocked or painted over by other trades
- Frame perimeters left unsealed or poorly sealed
Need construction mastic in Passfield?
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Questions about Passfield
Is Passfield too far out for you?
No. Places such as Passfield are covered as much as the big towns. Our area covers London and the South East counties. We plan jobs in smaller places so return trips are kept to a minimum.
Will you take on work at estates like Passfield Industrial Estate, close to Passfield?
Yes, sites like Passfield Industrial Estate are within our area, along with the rest of Passfield. Photos and a short description are enough for a first look.
How long do sealant joints last?
There’s no fixed lifespan: movement, exposure, cleaning, traffic and the product all play a part. Sealant joints are maintenance items, so inspect them regularly.
Are you fully insured?
Yes. Mastic Doctor is fully insured, public liability included.
What’s the quickest route to a quote?
It works in four steps: send details, get a quote, we seal, guaranteed. The first step only needs photographs and a postcode.
Can you clear a mastic snag list before handover?
Yes, we can. Send the snag list or photos and we’ll price it, with the work timed to your handover date.
Will you quote for a small job?
Small jobs are welcome alongside larger packages. Send details for a fixed quote.
Construction mastic in Passfield, done properly
We work to the specification and the programme, not to habit. If a product is named, that’s what goes in; any alternative we suggest is put to you before anything changes. Backing, primer and depth follow what the sealant maker sets out, so the joints perform as the designer intended. If you have sanitary sealant damaged by following trades and failed sealant in an existing building being refurbished, we can help. For commercial sealant work in Passfield, you deal with one contact from quote to sign-off, for single jobs and planned programmes alike.
Around smaller places like Passfield, building work normally means conversions of farm buildings, a few new houses or an extension to a hall or school. Each still needs a proper mastic package: window perimeters, facade joints and internal sealant to the specification.
Our 12-month guarantee is about workmanship, not wear and tear. How long a sealant joint lasts depends on movement, exposure, cleaning and use, so we’re clear about what is covered before work starts.

- Where
- Passfield (GU30)
- Wider area
- Hampshire
- Cover
- 12 months on every job
- Quotes
- Quoted before any work starts
- Phone
- 01277 525 020
- Updated
- 3 November 2026
Construction mastic in Passfield: the local picture
Passfield is about 42 miles from central London. Building activity in the commuter belt runs from new flats near stations to business park refurbishments, and each scheme needs its mastic sealed to programme. The South East is one of the drier parts of the UK. That doesn’t stop wet spells, or frosty starts that leave panels too damp to seal, so we time external mastic for dry faces and agree it with the site team.
When units on a site such as Passfield Industrial Estate (under half a mile north of Passfield) are refurbished or reclad, the panel joints and window perimeters are part of the mastic package. New wings at hospitals like Chase Hospital, 1.5 miles to the north-west of Passfield, bring long runs of window and panel joints to seal.
Passfield is about 7 miles south-east of Alton, in Hampshire. We cover commercial sites throughout Passfield, for single jobs and planned programmes alike. Our Hampshire coverage takes in 723 places, large and small. For work in that direction, see our Portsmouth page.
If you need construction mastic in GU30, the process matches everywhere else we work: details, then a fixed price, then sealing and a 12-month guarantee. We cover commercial and managed buildings on The Lyndons, Eleanor Close and Lynchborough Road and the roads nearby. We also cover Conford (1 mile south-east), Weavers Down (1 mile south), Liphook (2 miles south-east), Woolmer (2 miles south-west) and Longmoor (2 miles south-west). Further afield, our area takes in Farnborough (14 miles north), Fleet (12 miles north), Horndean (15 miles south-west), Aldershot (11 miles north), Alton (7 miles north-west) and Petersfield (8 miles south-west).
Around Passfield
The nearest railway station is Liphook station, roughly 2.3 miles south-east. Other landmarks nearby include Chase Community Hospital (1.5 miles north-west). For a walk, there’s Deadwater Valley and Wheeler's Down.
What affects the price in Passfield
A fixed quote reflects the actual work. It takes account of:
- Access and working height
- Whether the work must be split into stages
- How much there is to seal
- The product specified
Access can matter as much as the joints themselves: 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.
Sending details for a quote
There’s no need for a formal survey. These details are enough to start:
- When you need the work done
- Where the site is, with the postcode
- Access details, including height
- The type of building and who uses it
Specifications, drawings and tender packages are welcome with any enquiry, and we’ll price against exactly what is specified. For smaller jobs, photographs and a description will do.
Other services in Passfield
Diagnose, treat, sign off
When we get to site, we sign in, go through any site induction and check how permits are handled. Floors, finishes and fittings next to the joints are covered before anything is cut or cleaned, and the work typically takes whatever the programme allows, since the work follows the trades as areas are released. If others near Passfield need work, visits can be combined, which keeps travel down. A fixed quote is given before anything starts.
- First we take quantities off the drawings and read through the specification.
- We return a fixed quote that ties the mastic package to your programme.
- You tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we confirm it with the quote.
- Areas are sealed plot by plot or floor by floor as the trades hand them over.
- Each joint is prepared, backed to depth and sealed in the product the specification names.
- We close out snagging and hand over with a 12-month guarantee.
What we need from you
- Share your working hours and any access restrictions
- Tell staff and tenants when we’ll be in
- Share the asbestos register for older buildings
Request a quote
We quote a fixed sum against the scope you give us, so the cost is agreed before work starts. To start the process, phone 01277 525 020 or send details through our quote form.
Related advice
Surface by surface
Snagging before handover
Snagging is often the final mastic stage. We can work through the snag list area by area, cutting out damaged joints and resealing them properly.
External facade and movement joints
External movement joints often need primer, depending on the substrate. Primer goes on where the sealant maker calls for it, and seal only with a dry joint inside the product’s temperature range.
What happens if it’s left?
A quick bead over a damaged joint can get an area past inspection, but it won’t last. New sealant laid on old or dirty sealant has nothing to bond to, and the defect comes back after handover. Damaged joints are removed and resealed from clean faces. Around Passfield, it’s better to renew all the failing joints at once, rather than one at a time. Photos of every joint help us quote for the whole job.
The specified product makes a difference, and so does the preparation. Access, phasing and site requirements come into it too.
Why clients in Passfield choose us
- Coloured sealants to suit the setting, where available
- Health and safety: CHAS accredited
- Sealing commercial buildings since 2005
- 12 months’ guarantee on every job
Take a look at our cost guide or how we’re accredited.
Should maintenance staff do it?
For most general trades, sealant is a sideline. A specialist prepares properly, controls joint depth and picks a product with the right movement class.
Some joints are best left to specialists: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. Getting these wrong usually costs more in the end than doing them right.
Do you need construction mastic in Passfield?
Shrinkage and settlement in the first months put new joints under strain. Materials lose construction moisture and shrink and internal caulk in a moving joint is typically the first to crack. Picking a flexible sealant where there’s movement keeps snags down.
Site and facilities staff are often the first to spot these:
- Perimeter gaps outside the sealant’s range
- Sanitary sealant damaged by following trades
- Mastic snags holding up handover
- Existing joints on a refurb that need cutting out and resealing
For contractors at a school such as Mill Chase Academy, sealing has to be finished before term starts.
What to look for in a quote
- How they handle RAMS and site documents
- Who will actually carry out the work
- How long is the guarantee, and what does it include?
- Is the sealant right for the movement and the substrate?