When I gutted the kitchen in one of my rental units last year, I budgeted three days for demolition. With my reciprocating saw doing most of the work, I was down to bare studs in under six hours. That single tool u2014 a beat-up 18V model I’ve owned for almost 9 years now u2014 has probably saved me over 400,000 yen in contractor fees across my properties, simply because it turns what used to be sledgehammer-and-crowbar guesswork into fast, controlled cuts.
If you self-manage rentals like I do, demolition is unavoidable. Tenants move out, kitchens age out, bathrooms rot from the inside. A reciprocating saw (what most of my Japanese contractor friends just call a “reci-saw” or *seebar-soo*) is, in my experience, the single most useful power tool for tearing things apart quickly and without destroying what’s underneath.
Why the Reciprocating Saw Is My First Tool on Demo Day
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18V Professional Impact Driver
My most-used tool. If you own one power tool, make it this.
Before I owned one, I was doing partial demolition with a hammer, a pry bar, and a lot of frustration. A reciprocating saw changes the math completely. With the right blade, it will cut through wood, drywall, plaster, thin metal, and even nail-embedded framing without you needing to guess where the fasteners are. I’ve used mine on at least 6 of my 9 properties for full or partial gut renovations, and every time it cuts the labor time roughly in half compared to hand tools.
Cutting Through Walls and Drywall Fast
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Power Tool Combo Kit (18V)
Combo kits are always better value than individual tools u2014 one battery charges all.
For opening up a wall u2014 say, to run new wiring or widen a doorway u2014 I plunge the blade directly into the drywall about 5cm from a stud line and cut straight down. A single 12-inch demolition blade will get me through 3 to 4 meters of standard 12.5mm drywall before it dulls enough to swap. I always cut in short, controlled strokes rather than forcing the saw; rushing it is how you snap blades, and at roughly 400 yen each for a decent blade, snapping three or four in an afternoon adds up fast.
One habit that’s saved me real money: before cutting into any wall, I check for outlets and switch boxes on both sides. I learned that lesson the hard way on my second property, when I sawed clean through a hidden junction box and had to call an electrician for an emergency same-day fix that cost me 18,000 yen.
Ripping Out Old Cabinets, Vanities, and Built-Ins
Old kitchen cabinets and bathroom vanities are usually screwed and glued into place, which makes prying them off the wall slow and risky for the wall surface behind them. Instead, I use the reciprocating saw to cut the cabinet carcass into two or three sections right where it’s attached, then pull each piece free individually. A full run of upper and lower kitchen cabinets u2014 about 4 meters of cabinetry u2014 usually takes me under 90 minutes this way, versus a half-day of prying and patching drywall damage afterward.
Cutting Nail-Embedded Framing and Old Lumber
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Tool Storage & Workshop Organizer
A well-organized toolbox saves 20 minutes on every job. Multiply that by 100 repairs.
This is where the reciprocating saw earns its keep over a circular saw. Old stud walls, subfloor, and built-in shelving are full of nails and screws you can’t see, and a standard wood blade will dull or shatter the moment it hits metal. I keep a mixed selection of blades in my tool bag specifically for demo work:
- Wood blades with large teeth (6 TPI) for clean framing cuts
- Nail-embedded wood blades (bi-metal, 8u201310 TPI) for anything with hidden fasteners
- Metal-cutting blades (18u201324 TPI) for pipe, conduit, and thin steel brackets
- Pruning blades, which I’ve repurposed for cutting through old wood fencing and deck framing
Switching blades takes about 10 seconds with a tool-less blade clamp, so I don’t hesitate to swap mid-job the moment I feel resistance change under the blade.
Plumbing and Metal Pipe Removal
For bathroom and kitchen renovations, I regularly need to cut out old galvanized pipe or copper stubs that are no longer usable. A metal-cutting blade on the reciprocating saw handles pipe up to about 5cm in diameter without much trouble, and it’s far faster and safer in a cramped under-sink cabinet than trying to fit a full-size hacksaw in there. On one bathroom renovation, cutting out four old pipe stubs took me maybe 20 minutes total, a job that would have eaten most of a morning with hand tools.
Safety Habits I Follow on Every Demo Job
Demolition work with a reciprocating saw is fast, but it’s also where I’ve come closest to actually hurting myself, mostly from not knowing what’s on the other side of a cut. Over 15 years of doing this myself, I’ve settled into a routine I don’t skip, even when I’m in a hurry:
- Cut power to the room at the breaker before opening any wall near outlets or switches
- Check both sides of a wall for pipes, wiring, or structural framing before plunge-cutting
- Wear safety glasses and gloves every time u2014 blade snap-back has nicked my forearm more than once
- Keep a second, charged battery on hand so the job doesn’t stall halfway through a wall section
That last point matters more than people expect. A drained battery mid-cut on a load-bearing section is how you end up leaving a wall half-open overnight, which is never a good look when a tenant walks by the unit.
That’s the approach I use across all 9 of my properties whenever demolition is on the schedule u2014 the reciprocating saw goes in the truck before anything else does.
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15 years of landlord experience u00b7 3 apartment buildings u00b7 DIY renovations that saved millions of yen. Browse all articles at diytosan.com
