Most renovation advice assumes a modern home: standard plasterboard walls, off-the-shelf joinery, contemporary plumbing routed wherever it is most convenient. Heritage properties do not work that way. A 1612 canal house in Amsterdam, a Georgian terrace in London, a stone cottage in the Cotswolds: each one was built using methods that quietly fall apart when treated like a new build.
Finding the right craftspeople for these houses is the single most important decision you will make. The wrong trade, even a competent one, will leave you with cement render trapping moisture in lime walls, sash cords replaced with uPVC, original mouldings ripped out and replaced with MDF profiles that look almost right and entirely wrong. The right trade will save the house from itself.
Here is how I go about it.
Why heritage trades are a separate discipline
A general builder is trained in modern materials. Modern materials are designed to seal, lock and last. Heritage materials are designed to breathe, move and age.
Lime plaster lets a wall absorb and release moisture across the seasons. Cement plaster traps it, and the wall rots from the inside. A sash window weighted on hemp cord can be dismantled, reglazed and rebalanced indefinitely. A spring-balance replacement is disposable. Solid timber doors with mortice-and-tenon joinery were built to be planed, repaired and rehung for centuries; modern hollow-core doors last fifteen years.
This is not nostalgia. It is the practical reality of working with buildings that predate the materials most trades were trained on. Anyone touching a period home needs to understand what they are touching.
The specialists worth knowing
Before you start any meaningful restoration work, learn the names of the trades you are likely to need. Most are not listed on the high street.
- Lime plasterers. For internal walls, lath-and-plaster ceilings, external lime render and lime mortar repointing. Mixing ratios and curing times are entirely different from gypsum or cement.
- Sash window specialists. Restoration over replacement, almost always. They will reglaze with thin-section heritage glass, replace rotted cills, splice in new timber where needed and rebalance the cords or chains.
- Heritage joiners. For replicating skirtings, architraves, panelled doors, picture rails and shutters. A good heritage joiner will profile their own knives to match what is already in the house.
- Conservation decorators. Trained in traditional paints, distemper, limewash, eggshell over lead-substitute primers. They will know why you do not put modern emulsion onto a lime wall.
- Stone masons and brick specialists. For pointing in lime mortar, replacing damaged bricks with reclaimed or hand-made matches, and conserving fireplaces, hearths and chimney pieces.
- Traditional roofers. For slate, hand-made clay tile, lead flashing and conservation rooflights. The cheap modern alternatives are visible from the street and rarely permitted on listed properties.
- Heritage electricians and plumbers. They will not chase walls indiscriminately, will route services along existing voids and skirtings, and will understand the limits of what you can pull through a 400-year-old timber frame.
You may not need all of these on every project. But knowing they exist, and knowing why a generalist cannot stand in for them, is the start.
Where to find them
In the UK, three organisations are worth bookmarking. The Society for the Protection of Ancient Buildings (SPAB) maintains a directory of trained members. The Heritage Crafts Association tracks endangered building trades. The Building Conservation Directory lists vetted specialists by region and discipline.
In the Netherlands, look to Restauratoren Nederland, the Vakgroep Restauratie and Monumentenwacht. For specific guidance on Amsterdam canal houses, the local Bureau Monumenten en Archeologie at the Gemeente will tell you who has worked on similar properties nearby, and which approvals you will need.
Word of mouth is still the most reliable shortcut. If you walk past a house that has been beautifully restored, knock on the door. Owners of heritage properties are almost always happy to share who they used and, more usefully, who they would not use again.
What to ask before you commit
A general brief is not enough for heritage work. Before you take a quote seriously, ask:
- Have you worked on a property of this age and type before? Not just "old houses." A Georgian London terrace and a Dutch grachtenpand have almost nothing in common structurally.
- What materials would you use, and why? A heritage trade will explain ratios, suppliers and reasoning. If the answer is "the usual," walk away.
- Can I see two or three completed projects in person? Photographs flatter. Buildings two years on do not lie.
- Will you handle the listed-building consent or conservation officer liaison? If the house is listed or in a conservation area, this is non-negotiable. You want a trade that has done this before.
- What guarantee or aftercare do you offer? Lime work in particular needs revisiting after the first winter. The right specialist will expect to come back.
A confident specialist will welcome these questions. A general builder pretending to be one will get visibly uncomfortable.
On budget
Heritage trades cost more per day than general builders. Sometimes meaningfully more. There are three reasons this is almost always worth it.
First, the work outlasts you. Lime plaster repaired correctly will not need touching again for fifty years. A cement-rendered wall will need stripping back within a decade.
Second, the resale and insurance position on a period home is materially better when restoration is documented and properly executed. Buyers, surveyors and insurers all look for evidence of the right trades.
Third, the wrong work is expensive to undo. I have seen owners spend more removing inappropriate twentieth-century interventions than the original restoration would have cost. The cheapest route, in heritage work, is almost always to do it once and do it correctly.
Build the relationship slowly
The best heritage craftspeople are booked months ahead. Many work alone or in small teams. They are not interested in chasing volume, and they choose their projects carefully.
If you find someone whose work you respect, treat the relationship as a long conversation rather than a transaction. Pay on time. Be on site when they need decisions. Listen to what they tell you about the building, because they will know things about it that you do not.
A craftsperson who trusts the client will return. They will recommend the next trade you need. They will tell you when something is not worth doing, and when something modest is worth doing properly. That network, slowly built, is what makes restoring a period home possible at all.
A final note
Heritage work is slower, more expensive and more emotionally taxing than a standard renovation. It is also one of the few forms of building work that genuinely matters. The houses we are looking after were here long before us. Choosing the right hands to work on them is the smallest courtesy we owe.
If the trade you are speaking to does not understand that, find the one who does.
