Mobile tire service in the East End and Warm Springs Mesa, Boise

More of ZIP 83712 sits inside Boise's official hillside designation than any other ZIP in the city, and we can put a measured number on that. It is not the number most people expect, and it is not a gradient. 35.0% of this ZIP's 5,266 address points fall inside the City of Boise's Hillside designation — 1,841 of them, the highest share of the ten Boise-area ZIP codes we measured. The next highest is 83702 at 18.0%.

We supply the tires and fit them where the car is parked, here and across the Boise metro. No separate call-out fee, no estimate visit.

What that 35% is, and what it is not

It is a measurement, and it is ours. The City of Boise publishes a Hillside polygon layer and an Ada County Addresses layer of 275,026 points. We reprojected the six Hillside polygons into the address layer's own spatial reference and ran a point-in-polygon pass over every address point carrying a 837xx ZIP. That is where 1,841 of 5,266 comes from. Nobody publishes this ranking; we computed it and we are showing the arithmetic so you can argue with it.

It is not a gradient. Boise Municipal Code section 11-14-02.1, quoted in the city's own dataset description, designates a hillside where a slope "exceeds fifteen percent (15%)" or where conditions associated with slope stability, expansive soils, high water table and springs, erosion or sedimentation are present. Only the first of those triggers is a measure of steepness at all; the rest are about what the ground is doing. An address inside the overlay can sit on land as flat as a car park with bad soil underneath it.

So we will not tell you the average grade of a street in the East End, and you should be wary of anyone who does. No digital elevation model was processed for this page and no gradient was computed for any Boise street. The only published grade figures in this metro are policy thresholds — the city's fifteen percent in the hillside definition above, and the Ada County Highway District's six percent for winter plowing below. Neither of them describes any particular street.

The full measured ranking across the ten Boise-area ZIPs, share of addresses inside the overlay: 83712 35.0%, 83702 18.0%, 83703 9.3%, 83716 9.0%, 83706 1.8%, 83709 1.1%, 83714 1.1%, 83705 0.6%, 83704 0.1%, and 83713 with none at all — zero of 13,811. Two ZIPs carry almost all of it: 83712 and 83702 together hold 4,967 of the ten ZIPs' 7,804 hillside addresses, which is 63.6% (derived: 4,967 ÷ 7,804).

The one grade number Boise's road authority does publish

The streets here belong to the Ada County Highway District, not to the city. ACHD's winter priority list puts "Streets with grades (steepness) over six percent" in priority one, alongside arterials, bridges, hospital and fire-station approaches and school crossings. Residential streets, "including cul-de-sacs", are priority three of three.

Read those two facts together and you have the practical shape of a Warm Springs Mesa winter: the steep connector you use to get out gets cleared first, and the street your car is actually parked on gets cleared last. ACHD's winter materials are magnesium chloride, salt and sand, applied before and during a storm. We have no source for what that does to a wheel finish or a sensor over time, so we are not going to tell you.

The snow itself is modest. NOAA's 1991–2020 normals at Boise Air Terminal give 19.2 inches a year across 19.4 days with measurable snow, of which 6.9 days bring an inch or more and 1.3 days bring three inches or more. Depth is not the problem in Boise. The order of clearing is.

Who lives here

9,071 residents in 4,432 occupied housing units — the smallest of the ten Boise-area ZIPs by population — 60.4% owner-occupied and 39.6% renter. 63.9% of units are one-unit detached houses, against 64.4% for the city of Boise.

We use that detached share as a proxy for off-street space and we label it as one every time, because the American Community Survey carries no garage or driveway variable and neither Boise nor ACHD publishes a count. A detached house usually means somewhere to work beside the car. "Usually" is doing real work in that sentence, which is why we ask at booking instead of assuming.

The city's own registry puts 5,226 of this ZIP's 5,266 addresses, 99.2%, inside a registered neighbourhood association: East End 4,499, Warm Springs Mesa 709, Downtown Boise 15 and Barber Valley 3. 69.7% drive alone to work, 5.3% carpool, 7.0% walk or cycle and 15.5% work at home. The ACS records 0.0% taking public transport in this ZIP — not a rounding artefact of a small number, a zero. And the mean commute is 16.7 minutes, the shortest of the ten (derived from ACS table B08013 aggregate travel time over workers who did not work at home).

A short commute cuts both ways for a service like ours. You are rarely far from home when a tire goes down, so the rescue-from-the-hard-shoulder pitch is weak here. But the car is usually at an address we can reach, which is the whole basis of the business.

Height, honestly stated

The NOAA station at Boise Air Terminal sits at 857.7 metres, which is about 2,814 feet (derived: 857.7 × 3.28084). That is the airport on the valley floor. The foothills above the East End are higher, and by how much this page does not say, because nothing we read measures it.

Where we can work here

Level, paved, legal ground with room to work at one corner of the car, and room for a van. That is the whole requirement. In a ZIP where a third of addresses are inside a hillside overlay, the honest version is that the overlay tells us nothing about your particular kerb — a flat drive and a pitched one can be neighbours. If your own spot is on a slope, a level patch fifty yards away usually solves it, and moving the car before we arrive takes two minutes.

What we do not do

We supply the tires we fit. Tires bought elsewhere are out, a policy we withdrew support for on 2026-09-20 and are not quietly reinstating. No alignment, no rotation on its own, no balancing on its own, no brakes, no emergency roadside. Mobile puncture repair is in scope, subject to taking the tire off the rim and inspecting it from the inside.

Our price: $145, and $50 for each extra tire

A mobile puncture repair is $145 for the first tire and $50 for each additional tire in the same visit. That is the price, not an estimate and not a starting figure. It covers getting to you, the wheel off, the tire demounted and inspected from the inside, a plug and patch fitted the way the tire industry requires, remounting, rebalancing, a TPMS reset where the vehicle supports it, and the wheel back on. There is no separate call-out fee. If the damage is not repairable we say so on the spot: the inspection is charged and the repair is not.

Questions people ask

• Is my street steep enough to be a problem? The hillside overlay cannot answer that and neither can we from a desk. Tell us the block at booking and we will check before anyone is dispatched, and see working on a Boise hillside driveway.
• You said 35% but you will not tell me a gradient. Why? Because the 35% is measured and a gradient would be invented. The overlay fires on soils and water table as well as slope.
• I came down off the Mesa and hit something hard. A sidewall bulge afterwards is a replacement, never a repair: a bulge in the tire sidewall. Impact damage often shows only on the inner liner, which is why we look inside.
• What pressure should the car be at? The placard on the driver's door frame, read cold, not the number moulded into the tire: the tire pressure placard.
• The tire went down on the drive overnight. Leave it there. A flat in the driveway explains why driving it to a shop is what ends the repair.
• Repair or a new tire? Repair or replace sets out where the line falls, and a nail in the tire in Boise covers the common case.
• How many do I need? How many tires and mixing tire brands.
• Where else do you work in Boise? The North End and Downtown, Vista and the Central Bench, Barber Valley, Southwest Boise and West Boise.