Writing a Method Statement for Heritage Masonry: What to Include
For architects and specifiers: a good method statement isn’t paperwork for its own sake — it’s risk reduction, quality assurance, and a smoother programme.
If you’re specifying or overseeing heritage works, you already know the pain: the wrong material, the wrong sequence, or a vague scope can create disputes, delays, and irreversible fabric loss.
A clear method statement helps everyone: the client understands what “good” looks like, the contractor delivers predictably, and you reduce risk to building, budget and reputation.
Here’s what we include (and the thinking behind it).
1) Scope boundaries (what’s in, what’s out)
Heritage projects go sideways when scope is implied rather than stated. We define:
- the exact areas and elevations
- what’s included (rake out, repoint, localised repairs, cleaning)
- what’s excluded (scaffold by others, making good by others, decoration, and so on)
2) Condition assumptions and opening-up risk
We document what we can see today, what may be discovered when opened up (voids, friable stone, saturated cores), and how changes will be handled (see change control). This protects the programme and reduces adversarial “you should have known” dynamics.
3) Materials compatibility (mortar spec and rationale)
We specify the binder type (lime putty or NHL grade as appropriate), aggregate grading and colour-matching approach, mixing and storage, and exposure considerations (wind-driven rain, frost risk).
And we write the rationale in clear terms: why this mortar suits this stone and this exposure.
4) Sample panels and approval gates (when finish is critical)
Where the finish standard is sensitive, we propose a small sample area, an agreed joint profile and finish, and sign-off before scaling. This avoids rework and protects the final appearance.
5) Sequencing and workmanship approach
We describe the raking-out depth and technique, joint prep and cleaning, application method, finishing profile, and protection of stone edges and adjacent fabric.
6) Curing and protection
Lime performance depends on curing. We include protection from direct sun, wind, heavy rain and frost; curing-time assumptions; and what triggers a pause (weather thresholds). It’s often the difference between “fine” and “excellent”.
7) Quality control checkpoints
We set checkpoints such as substrate condition before pointing, mortar consistency and workability, finish consistency, and daily tidy and protection checks.
8) Documentation and evidence
We can provide dated photo records (before, during and after), material batch notes (as appropriate), and progress notes (particularly useful for remote stakeholders).
9) Change control (variations without drama)
If conditions differ, we document what was found, the options (retain, repair or replace; cost and time impacts), and an approval step before proceeding. This preserves trust and protects the programme.
10) Safety and access assumptions
Where required, we cover scaffold interfaces, protection of public routes (churchyards and similar), and site rules and access constraints.
If you’re tendering a heritage project
If you have drawings or a spec scope and want a contractor who understands lime and compatibility, communicates clearly, and documents properly, send the relevant extracts and we’ll advise on approach, risks and sequencing.
